2021-12-14 13:19:11,515 ERROR nfo.magnolia.admincentral.AdmincentralErrorHandler: Admincentral has encountered an unhandled exception.
com.vaadin.server.ServerRpcManager$RpcInvocationException: Unable to invoke method click in com.vaadin.shared.ui.button.ButtonServerRpc
	at com.vaadin.server.ServerRpcManager.applyInvocation(ServerRpcManager.java:159) ~[vaadin-server-8.13.1.jar:8.13.1]
	at com.vaadin.server.ServerRpcManager.applyInvocation(ServerRpcManager.java:116) ~[vaadin-server-8.13.1.jar:8.13.1]
	at com.vaadin.server.communication.ServerRpcHandler.handleInvocation(ServerRpcHandler.java:442) [vaadin-server-8.13.1.jar:8.13.1]
	at com.vaadin.server.communication.ServerRpcHandler.handleInvocations(ServerRpcHandler.java:407) [vaadin-server-8.13.1.jar:8.13.1]
	at com.vaadin.server.communication.ServerRpcHandler.handleRpc(ServerRpcHandler.java:274) [vaadin-server-8.13.1.jar:8.13.1]
	at com.vaadin.server.communication.UidlRequestHandler.synchronizedHandleRequest(UidlRequestHandler.java:90) [vaadin-server-8.13.1.jar:8.13.1]
	at com.vaadin.server.SynchronizedRequestHandler.handleRequest(SynchronizedRequestHandler.java:40) [vaadin-server-8.13.1.jar:8.13.1]
	at com.vaadin.server.VaadinService.handleRequest(VaadinService.java:1608) [vaadin-server-8.13.1.jar:8.13.1]
	at com.vaadin.server.VaadinServlet.service(VaadinServlet.java:448) [vaadin-server-8.13.1.jar:8.13.1]
	at info.magnolia.admincentral.AdmincentralServlet.service(AdmincentralServlet.java:119) [magnolia-admincentral-6.2.12.jar:?]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:741) [servlet-api.jar:?]
	at info.magnolia.cms.filters.ServletDispatchingFilter.doFilter(ServletDispatchingFilter.java:148) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:85) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:79) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:81) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:81) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:81) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:81) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:81) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.CompositeFilter.doFilter(CompositeFilter.java:65) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:85) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:79) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.virtualuri.VirtualUriFilter.doFilter(VirtualUriFilter.java:98) [magnolia-virtual-uri-6.2.12.jar:?]
	at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:85) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:79) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.module.cache.executor.Bypass.processCacheRequest(Bypass.java:58) [magnolia-cache-core-5.9.4.jar:?]
	at info.magnolia.module.cache.executor.CompositeExecutor.processCacheRequest(CompositeExecutor.java:66) [magnolia-cache-core-5.9.4.jar:?]
	at info.magnolia.module.cache.filter.CacheFilter.doFilter(CacheFilter.java:164) [magnolia-cache-core-5.9.4.jar:?]
	at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:85) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:79) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.i18n.I18nContentSupportFilter.doFilter(I18nContentSupportFilter.java:85) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:85) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:79) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.RangeSupportFilter.doFilter(RangeSupportFilter.java:78) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:85) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:79) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.security.BaseSecurityFilter.doFilter(BaseSecurityFilter.java:57) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:85) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:79) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:81) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:81) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:81) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.security.SecurityCallbackFilter.doFilter(SecurityCallbackFilter.java:84) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.OncePerRequestAbstractMgnlFilter.doFilter(OncePerRequestAbstractMgnlFilter.java:59) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:79) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.security.LogoutFilter.doFilter(LogoutFilter.java:94) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.OncePerRequestAbstractMgnlFilter.doFilter(OncePerRequestAbstractMgnlFilter.java:59) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:79) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.module.site.filters.SiteMergeFilter.doFilter(SiteMergeFilter.java:119) [magnolia-site-1.4.2.jar:?]
	at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:85) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:79) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.multisite.filters.MultiSiteFilter.doFilter(MultiSiteFilter.java:120) [magnolia-module-multisite-2.1.1.jar:?]
	at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:85) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:79) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.MultiChannelFilter.doFilter(MultiChannelFilter.java:83) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:85) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:79) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:81) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.module.cache.filter.GZipFilter.doFilter(GZipFilter.java:74) [magnolia-cache-core-5.9.4.jar:?]
	at info.magnolia.cms.filters.OncePerRequestAbstractMgnlFilter.doFilter(OncePerRequestAbstractMgnlFilter.java:59) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:79) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:81) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.security.auth.login.LoginFilter.doFilter(LoginFilter.java:128) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:85) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:79) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.enterprise.registration.RegistrationFilter.doFilter(RegistrationFilter.java:91) [magnolia-module-enterprise-6.2.12.jar:?]
	at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:85) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:79) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:81) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:81) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:81) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.personalization.preview.filter.PreviewFilter.doFilter(PreviewFilter.java:92) [magnolia-personalization-preview-app-2.0.11.jar:?]
	at info.magnolia.cms.filters.OncePerRequestAbstractMgnlFilter.doFilter(OncePerRequestAbstractMgnlFilter.java:59) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:79) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:81) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:81) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:81) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:81) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.ContentTypeFilter.doFilter(ContentTypeFilter.java:155) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:85) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:79) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.ContextFilter.doFilter(ContextFilter.java:128) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:85) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.MgnlFilterChain.doFilter(MgnlFilterChain.java:79) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.CompositeFilter.doFilter(CompositeFilter.java:65) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.AbstractMgnlFilter.doFilter(AbstractMgnlFilter.java:85) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.SafeDestroyMgnlFilterWrapper.doFilter(SafeDestroyMgnlFilterWrapper.java:107) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.MgnlFilterDispatcher.doDispatch(MgnlFilterDispatcher.java:67) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.MgnlMainFilter.doFilter(MgnlMainFilter.java:110) [magnolia-core-6.2.12.jar:?]
	at info.magnolia.cms.filters.MgnlMainFilter.doFilter(MgnlMainFilter.java:96) [magnolia-core-6.2.12.jar:?]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [catalina.jar:9.0.10]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [catalina.jar:9.0.10]
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199) [catalina.jar:9.0.10]
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [catalina.jar:9.0.10]
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:491) [catalina.jar:9.0.10]
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139) [catalina.jar:9.0.10]
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) [catalina.jar:9.0.10]
	at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:668) [catalina.jar:9.0.10]
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) [catalina.jar:9.0.10]
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) [catalina.jar:9.0.10]
	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408) [tomcat-coyote.jar:9.0.10]
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) [tomcat-coyote.jar:9.0.10]
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:764) [tomcat-coyote.jar:9.0.10]
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1388) [tomcat-coyote.jar:9.0.10]
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-coyote.jar:9.0.10]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [?:1.8.0_121]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [?:1.8.0_121]
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-util.jar:9.0.10]
	at java.lang.Thread.run(Thread.java:745) [?:1.8.0_121]
Caused by: java.lang.reflect.InvocationTargetException
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_121]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_121]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_121]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_121]
	at com.vaadin.server.ServerRpcManager.applyInvocation(ServerRpcManager.java:155) ~[vaadin-server-8.13.1.jar:8.13.1]
	... 108 more
Caused by: com.vaadin.event.ListenerMethod$MethodException: Invocation of method buttonClick in info.magnolia.ui.dialog.ActionButton$$Lambda$9206/1142878917 failed.
	at com.vaadin.event.ListenerMethod.receiveEvent(ListenerMethod.java:726) ~[vaadin-server-8.13.1.jar:8.13.1]
	at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:399) ~[vaadin-server-8.13.1.jar:8.13.1]
	at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:363) ~[vaadin-server-8.13.1.jar:8.13.1]
	at com.vaadin.server.AbstractClientConnector.fireEvent(AbstractClientConnector.java:1190) ~[vaadin-server-8.13.1.jar:8.13.1]
	at com.vaadin.ui.Button.fireClick(Button.java:384) ~[vaadin-server-8.13.1.jar:8.13.1]
	at com.vaadin.ui.Button$1.click(Button.java:57) ~[vaadin-server-8.13.1.jar:8.13.1]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_121]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_121]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_121]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_121]
	at com.vaadin.server.ServerRpcManager.applyInvocation(ServerRpcManager.java:155) ~[vaadin-server-8.13.1.jar:8.13.1]
	... 108 more
Caused by: java.lang.RuntimeException: info.magnolia.ui.api.action.ActionExecutionException: Action execution failed for action: commit
	at info.magnolia.ui.dialog.ActionExecution.execute(ActionExecution.java:75) ~[magnolia-ui-framework-6.2.12.jar:?]
	at info.magnolia.ui.dialog.ActionButton.lambda$new$d31ec881$1(ActionButton.java:63) ~[magnolia-ui-framework-6.2.12.jar:?]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_121]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_121]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_121]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_121]
	at com.vaadin.event.ListenerMethod.receiveEvent(ListenerMethod.java:706) ~[vaadin-server-8.13.1.jar:8.13.1]
	at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:399) ~[vaadin-server-8.13.1.jar:8.13.1]
	at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:363) ~[vaadin-server-8.13.1.jar:8.13.1]
	at com.vaadin.server.AbstractClientConnector.fireEvent(AbstractClientConnector.java:1190) ~[vaadin-server-8.13.1.jar:8.13.1]
	at com.vaadin.ui.Button.fireClick(Button.java:384) ~[vaadin-server-8.13.1.jar:8.13.1]
	at com.vaadin.ui.Button$1.click(Button.java:57) ~[vaadin-server-8.13.1.jar:8.13.1]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_121]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_121]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_121]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_121]
	at com.vaadin.server.ServerRpcManager.applyInvocation(ServerRpcManager.java:155) ~[vaadin-server-8.13.1.jar:8.13.1]
	... 108 more
Caused by: info.magnolia.ui.api.action.ActionExecutionException: Action execution failed for action: commit
	at info.magnolia.ui.api.action.AbstractActionExecutor.execute(AbstractActionExecutor.java:64) ~[magnolia-ui-api-6.2.12.jar:?]
	at info.magnolia.ui.dialog.ActionExecution.execute(ActionExecution.java:73) ~[magnolia-ui-framework-6.2.12.jar:?]
	at info.magnolia.ui.dialog.ActionButton.lambda$new$d31ec881$1(ActionButton.java:63) ~[magnolia-ui-framework-6.2.12.jar:?]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_121]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_121]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_121]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_121]
	at com.vaadin.event.ListenerMethod.receiveEvent(ListenerMethod.java:706) ~[vaadin-server-8.13.1.jar:8.13.1]
	at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:399) ~[vaadin-server-8.13.1.jar:8.13.1]
	at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:363) ~[vaadin-server-8.13.1.jar:8.13.1]
	at com.vaadin.server.AbstractClientConnector.fireEvent(AbstractClientConnector.java:1190) ~[vaadin-server-8.13.1.jar:8.13.1]
	at com.vaadin.ui.Button.fireClick(Button.java:384) ~[vaadin-server-8.13.1.jar:8.13.1]
	at com.vaadin.ui.Button$1.click(Button.java:57) ~[vaadin-server-8.13.1.jar:8.13.1]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_121]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_121]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_121]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_121]
	at com.vaadin.server.ServerRpcManager.applyInvocation(ServerRpcManager.java:155) ~[vaadin-server-8.13.1.jar:8.13.1]
	... 108 more
Caused by: com.machinezoo.noexception.WrappedException: javax.jcr.nodetype.ConstraintViolationException: /eee/thumbnail: mandatory property {http://www.jcp.org/jcr/1.0}data does not exist
	at com.machinezoo.noexception.ExceptionWrapper.handle(ExceptionWrapper.java:11) ~[noexception-1.4.4.jar:?]
	at com.machinezoo.noexception.CheckedExceptionHandler.run(CheckedExceptionHandler.java:1713) ~[noexception-1.4.4.jar:?]
	at info.magnolia.ui.datasource.jcr.JcrDatasource.commit(JcrDatasource.java:151) ~[magnolia-ui-framework-jcr-6.2.12.jar:?]
	at info.magnolia.ui.datasource.jcr.JcrDatasource.commit(JcrDatasource.java:58) ~[magnolia-ui-framework-jcr-6.2.12.jar:?]
	at info.magnolia.ui.contentapp.action.CommitAction.lambda$write$0(CommitAction.java:124) ~[magnolia-ui-framework-6.2.12.jar:?]
	at java.util.Optional.ifPresent(Optional.java:159) ~[?:1.8.0_121]
	at info.magnolia.ui.contentapp.action.CommitAction.write(CommitAction.java:122) ~[magnolia-ui-framework-6.2.12.jar:?]
	at info.magnolia.ui.contentapp.action.CommitAction.execute(CommitAction.java:82) ~[magnolia-ui-framework-6.2.12.jar:?]
	at info.magnolia.ui.api.action.AbstractActionExecutor.execute(AbstractActionExecutor.java:62) ~[magnolia-ui-api-6.2.12.jar:?]
	at info.magnolia.ui.dialog.ActionExecution.execute(ActionExecution.java:73) ~[magnolia-ui-framework-6.2.12.jar:?]
	at info.magnolia.ui.dialog.ActionButton.lambda$new$d31ec881$1(ActionButton.java:63) ~[magnolia-ui-framework-6.2.12.jar:?]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_121]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_121]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_121]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_121]
	at com.vaadin.event.ListenerMethod.receiveEvent(ListenerMethod.java:706) ~[vaadin-server-8.13.1.jar:8.13.1]
	at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:399) ~[vaadin-server-8.13.1.jar:8.13.1]
	at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:363) ~[vaadin-server-8.13.1.jar:8.13.1]
	at com.vaadin.server.AbstractClientConnector.fireEvent(AbstractClientConnector.java:1190) ~[vaadin-server-8.13.1.jar:8.13.1]
	at com.vaadin.ui.Button.fireClick(Button.java:384) ~[vaadin-server-8.13.1.jar:8.13.1]
	at com.vaadin.ui.Button$1.click(Button.java:57) ~[vaadin-server-8.13.1.jar:8.13.1]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_121]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_121]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_121]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_121]
	at com.vaadin.server.ServerRpcManager.applyInvocation(ServerRpcManager.java:155) ~[vaadin-server-8.13.1.jar:8.13.1]
	... 108 more
Caused by: javax.jcr.nodetype.ConstraintViolationException: /eee/thumbnail: mandatory property {http://www.jcp.org/jcr/1.0}data does not exist
	at org.apache.jackrabbit.core.ItemSaveOperation.validateTransientItems(ItemSaveOperation.java:537) ~[jackrabbit-core-2.20.3.jar:2.20.3]
	at org.apache.jackrabbit.core.ItemSaveOperation.perform(ItemSaveOperation.java:216) ~[jackrabbit-core-2.20.3.jar:2.20.3]
	at org.apache.jackrabbit.core.session.SessionState.perform(SessionState.java:216) ~[jackrabbit-core-2.20.3.jar:2.20.3]
	at org.apache.jackrabbit.core.ItemImpl.perform(ItemImpl.java:91) ~[jackrabbit-core-2.20.3.jar:2.20.3]
	at org.apache.jackrabbit.core.ItemImpl.save(ItemImpl.java:329) ~[jackrabbit-core-2.20.3.jar:2.20.3]
	at org.apache.jackrabbit.core.session.SessionSaveOperation.perform(SessionSaveOperation.java:65) ~[jackrabbit-core-2.20.3.jar:2.20.3]
	at org.apache.jackrabbit.core.session.SessionState.perform(SessionState.java:216) ~[jackrabbit-core-2.20.3.jar:2.20.3]
	at org.apache.jackrabbit.core.SessionImpl.perform(SessionImpl.java:363) ~[jackrabbit-core-2.20.3.jar:2.20.3]
	at org.apache.jackrabbit.core.SessionImpl.save(SessionImpl.java:852) ~[jackrabbit-core-2.20.3.jar:2.20.3]
	at info.magnolia.jcr.wrapper.DelegateSessionWrapper.save(DelegateSessionWrapper.java:297) ~[magnolia-core-6.2.12.jar:?]
	at info.magnolia.jcr.wrapper.DelegateSessionWrapper.save(DelegateSessionWrapper.java:297) ~[magnolia-core-6.2.12.jar:?]
	at info.magnolia.jcr.wrapper.DelegateSessionWrapper.save(DelegateSessionWrapper.java:297) ~[magnolia-core-6.2.12.jar:?]
	at info.magnolia.jcr.wrapper.MgnlPropertySettingContentDecorator$MgnlPropertySettingSessionWrapper.save(MgnlPropertySettingContentDecorator.java:540) ~[magnolia-core-6.2.12.jar:?]
	at info.magnolia.jcr.wrapper.DelegateSessionWrapper.save(DelegateSessionWrapper.java:297) ~[magnolia-core-6.2.12.jar:?]
	at info.magnolia.audit.MgnlAuditLoggingContentDecoratorSessionWrapper.save(MgnlAuditLoggingContentDecoratorSessionWrapper.java:82) ~[magnolia-core-6.2.12.jar:?]
	at info.magnolia.jcr.wrapper.DelegateSessionWrapper.save(DelegateSessionWrapper.java:297) ~[magnolia-core-6.2.12.jar:?]
	at info.magnolia.jcr.wrapper.DelegateSessionWrapper.save(DelegateSessionWrapper.java:297) ~[magnolia-core-6.2.12.jar:?]
	at info.magnolia.ui.datasource.jcr.JcrSessionWrapper.save(JcrSessionWrapper.java:56) ~[magnolia-ui-framework-jcr-6.2.12.jar:?]
	at info.magnolia.ui.datasource.jcr.JcrDatasource.lambda$commit$2(JcrDatasource.java:151) ~[magnolia-ui-framework-jcr-6.2.12.jar:?]
	at com.machinezoo.noexception.CheckedExceptionHandler.run(CheckedExceptionHandler.java:1709) ~[noexception-1.4.4.jar:?]
	at info.magnolia.ui.datasource.jcr.JcrDatasource.commit(JcrDatasource.java:151) ~[magnolia-ui-framework-jcr-6.2.12.jar:?]
	at info.magnolia.ui.datasource.jcr.JcrDatasource.commit(JcrDatasource.java:58) ~[magnolia-ui-framework-jcr-6.2.12.jar:?]
	at info.magnolia.ui.contentapp.action.CommitAction.lambda$write$0(CommitAction.java:124) ~[magnolia-ui-framework-6.2.12.jar:?]
	at java.util.Optional.ifPresent(Optional.java:159) ~[?:1.8.0_121]
	at info.magnolia.ui.contentapp.action.CommitAction.write(CommitAction.java:122) ~[magnolia-ui-framework-6.2.12.jar:?]
	at info.magnolia.ui.contentapp.action.CommitAction.execute(CommitAction.java:82) ~[magnolia-ui-framework-6.2.12.jar:?]
	at info.magnolia.ui.api.action.AbstractActionExecutor.execute(AbstractActionExecutor.java:62) ~[magnolia-ui-api-6.2.12.jar:?]
	at info.magnolia.ui.dialog.ActionExecution.execute(ActionExecution.java:73) ~[magnolia-ui-framework-6.2.12.jar:?]
	at info.magnolia.ui.dialog.ActionButton.lambda$new$d31ec881$1(ActionButton.java:63) ~[magnolia-ui-framework-6.2.12.jar:?]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_121]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_121]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_121]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_121]
	at com.vaadin.event.ListenerMethod.receiveEvent(ListenerMethod.java:706) ~[vaadin-server-8.13.1.jar:8.13.1]
	at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:399) ~[vaadin-server-8.13.1.jar:8.13.1]
	at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:363) ~[vaadin-server-8.13.1.jar:8.13.1]
	at com.vaadin.server.AbstractClientConnector.fireEvent(AbstractClientConnector.java:1190) ~[vaadin-server-8.13.1.jar:8.13.1]
	at com.vaadin.ui.Button.fireClick(Button.java:384) ~[vaadin-server-8.13.1.jar:8.13.1]
	at com.vaadin.ui.Button$1.click(Button.java:57) ~[vaadin-server-8.13.1.jar:8.13.1]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_121]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_121]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_121]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_121]
	at com.vaadin.server.ServerRpcManager.applyInvocation(ServerRpcManager.java:155) ~[vaadin-server-8.13.1.jar:8.13.1]
	... 108 more