Caused by: java.lang.ClassCastException: class info.magnolia.ui.datasource.optionlist.Option$ByteBuddy$ZN4JtLiS cannot be cast to class java.util.Collection (info.magnolia.ui.datasource.optionlist.Option$ByteBuddy$ZN4JtLiS is in unnamed module of loader net.bytebuddy.dynamic.loading.ByteArrayClassLoader @49ea5180; java.util.Collection is in module java.base of loader 'bootstrap')
    at info.magnolia.module.backup.action.CreateBackupAction.getFrequency(CreateBackupAction.java:154) ~[magnolia-module-backup-extended-ui-1.0.jar:?]