ovirt UI - com.google.gwt.core.client.JavaScriptException: (TypeError) : oab(...) is null

2019-06-07 15:09:17,706+03 ERROR [org.ovirt.engine.ui.frontend.server.gwt.OvirtRemoteLoggingService] (default task-5) [] Permutation name: 0D2DB7A91B469CC36C64386E5632FAC5
2019-06-07 15:09:17,706+03 ERROR [org.ovirt.engine.ui.frontend.server.gwt.OvirtRemoteLoggingService] (default task-5) [] Uncaught exception: com.google.gwt.core.client.JavaScriptException: (TypeError) : oab(...) is null
	at org.ovirt.engine.ui.webadmin.section.main.view.popup.host.HostPopupView.$lambda$0(HostPopupView.java:693)
	at org.ovirt.engine.ui.webadmin.section.main.view.popup.host.HostPopupView$lambda$0$Type.eventRaised(HostPopupView.java:693)
	at org.ovirt.engine.ui.uicompat.Event.$raise(Event.java:99)
	at org.ovirt.engine.ui.uicommonweb.models.ListModel.$setSelectedItem(ListModel.java:82)
	at org.ovirt.engine.ui.uicommonweb.models.ListModel.setSelectedItem(ListModel.java:78)
	at org.ovirt.engine.ui.uicommonweb.models.ListModel.itemsChanged(ListModel.java:236)
	at org.ovirt.engine.ui.uicommonweb.models.ListModel.$itemsChanged(ListModel.java:224)
	at org.ovirt.engine.ui.uicommonweb.models.ListModel.$setItems(ListModel.java:102)
	at org.ovirt.engine.ui.uicommonweb.models.hosts.HostModel.$updateClusterList(HostModel.java:1037)
	at org.ovirt.engine.ui.uicommonweb.models.hosts.HostModel.$lambda$13(HostModel.java:1017)
	at org.ovirt.engine.ui.uicommonweb.models.hosts.HostModel$lambda$13$Type.onSuccess(HostModel.java:1017)
	at org.ovirt.engine.ui.frontend.Frontend$1.$onSuccess(Frontend.java:227) [frontend.jar:]
	at org.ovirt.engine.ui.frontend.Frontend$1.onSuccess(Frontend.java:227) [frontend.jar:]
	at org.ovirt.engine.ui.frontend.communication.OperationProcessor$1.$onSuccess(OperationProcessor.java:133) [frontend.jar:]
	at org.ovirt.engine.ui.frontend.communication.OperationProcessor$1.onSuccess(OperationProcessor.java:133) [frontend.jar:]
	at org.ovirt.engine.ui.frontend.communication.GWTRPCCommunicationProvider$5$1.$onSuccess(GWTRPCCommunicationProvider.java:270) [frontend.jar:]
	at org.ovirt.engine.ui.frontend.communication.GWTRPCCommunicationProvider$5$1.onSuccess(GWTRPCCommunicationProvider.java:270) [frontend.jar:]
	at com.google.gwt.user.client.rpc.impl.RequestCallbackAdapter.onResponseReceived(RequestCallbackAdapter.java:198) [gwt-servlet.jar:]
	at com.google.gwt.http.client.Request.$fireOnResponseReceived(Request.java:233) [gwt-servlet.jar:]
	at com.google.gwt.http.client.RequestBuilder$1.onReadyStateChange(RequestBuilder.java:409) [gwt-servlet.jar:]
	at Unknown.onreadystatechange<(https://cluster/ovirt-engine/webadmin/?locale=en_US#hosts)
	at com.google.gwt.core.client.impl.Impl.apply(Impl.java:236) [gwt-servlet.jar:]
	at com.google.gwt.core.client.impl.Impl.entry0(Impl.java:275) [gwt-servlet.jar:]
	at Unknown.Su/<(https://cluster/ovirt-engine/webadmin/?locale=en_US#hosts)
	at Unknown.anonymous(Unknown)