2021-10-13 16:38:44,194 DEBUG dler.codec.http.websocketx.WebSocket08FrameEncoder: Encoding WebSocket Frame opCode=2 length=15
2021-10-13 16:38:46,206 ERROR nfo.magnolia.admincentral.AdmincentralErrorHandler: AdmincentralUI has encountered an unhandled exception.
java.lang.NullPointerException: null at info.magnolia.external.dam.celum.CelumAsset.getPreviewLink(CelumAsset.java:120) ~[celum-dam-connector-0.9.jar:?] at info.magnolia.external.dam.celum.renderer.CelumAssetRenderer.render(CelumAssetRenderer.java:47) ~[celum-dam-connector-0.9.jar:?]
at info.magnolia.dam.app.imageprovider.AssetPreviewProvider.lambda$getResource$0(AssetPreviewProvider.java:77) ~[magnolia-dam-app-3.0.8.jar:?]
at java.util.Optional.map(Optional.java:258) ~[?:?]
at info.magnolia.dam.app.imageprovider.AssetPreviewProvider.getResource(AssetPreviewProvider.java:72) ~[magnolia-dam-app-3.0.8.jar:?]
at info.magnolia.dam.app.contentview.column.AssetNameColumnDefinition$ValueProvider.apply(AssetNameColumnDefinition.java:81) ~[magnolia-dam-app-3.0.8.jar:?]
at info.magnolia.dam.app.contentview.column.AssetNameColumnDefinition$ValueProvider.apply(AssetNameColumnDefinition.java:64) ~[magnolia-dam-app-3.0.8.jar:?]
at com.vaadin.ui.Grid$Column.generateRendererValue(Grid.java:1111) ~[vaadin-server-8.13.0.jar:8.13.0]
at com.vaadin.ui.Grid$Column.access$1100(Grid.java:849) ~[vaadin-server-8.13.0.jar:8.13.0]
at com.vaadin.ui.Grid$Column$1.generateData(Grid.java:898) ~[vaadin-server-8.13.0.jar:8.13.0]
at com.vaadin.data.provider.DataCommunicator.getDataObject(DataCommunicator.java:481) ~[vaadin-server-8.13.0.jar:8.13.0]
at com.vaadin.data.provider.DataCommunicator.pushData(DataCommunicator.java:461) ~[vaadin-server-8.13.0.jar:8.13.0]