Hi, Finally I managed to migrate 4.4.7 to fresh installation of 4.4.10. However, after successful engine-setup I’ve got 500 - Internal Server Error I found this: https://bugzilla.redhat.com/show_bug.cgi?id=1918022 Bug 1918022 - oVirt Manager is not loading after engine-setup Article suggested to downgrade vdsm-jsonrpc-java to 1.5.x. However, this is not possible: dnf --showduplicates list vdsm-jsonrpc-java dnf install vdsm-jsonrpc-java-1.5.7-1.el8 Last metadata expiration check: 0:39:52 ago on Fri 15 Jul 2022 02:32:36 PM EEST. Error: Problem: problem with installed package ovirt-engine-backend-4.4.10.7-1.el8.noarch - package ovirt-engine-backend-4.4.10.7-1.el8.noarch requires vdsm-jsonrpc-java >= 1.6.0, but none of the providers can be installed - cannot install both vdsm-jsonrpc-java-1.5.7-1.el8.noarch and vdsm-jsonrpc-java-1.6.0-1.el8.noarch - cannot install both vdsm-jsonrpc-java-1.6.0-1.el8.noarch and vdsm-jsonrpc-java-1.5.7-1.el8.noarch How to fix this? Thanks in advance. ***************** SERVER LOG ********************* 2022-07-15 14:45:44,969+03 ERROR [org.jboss.as.controller.management-operation] (Controller Boot Thread) WFLYCTL0013: Operation ("deploy") failed - address: ([("deployment" => "engine.ear")]) - failure description: {"WFLYCTL0080: Failed services" => {"jboss.deployment.subunit.\"engine.ear\".\"bll.jar\".component.Backend.START" => "java.lang.IllegalStateException: WFLYEE0042: Failed to construct component instance Caused by: java.lang.IllegalStateException: WFLYEE0042: Failed to construct component instance Caused by: javax.ejb.EJBException: org.jboss.weld.exceptions.WeldException: WELD-000049: Unable to invoke protected void org.ovirt.engine.core.bll.TagsDirector.init() on org.ovirt.engine.core.bll.TagsDirector@648487d3 Caused by: org.jboss.weld.exceptions.WeldException: WELD-000049: Unable to invoke protected void org.ovirt.engine.core.bll.TagsDirector.init() on org.ovirt.engine.core.bll.TagsDirector@648487d3 Caused by: java.lang.reflect.InvocationTargetException Caused by: org.springframework.dao.InvalidDataAccessApiUsageException: Unable to determine the correct call signature - no procedure/function/signature for 'gettagsbyparent_id'"}} 2022-07-15 14:45:44,981+03 INFO [org.jboss.as.server] (ServerService Thread Pool -- 25) WFLYSRV0010: Deployed "restapi.war" (runtime-name : "restapi.war") 2022-07-15 14:45:44,982+03 INFO [org.jboss.as.server] (ServerService Thread Pool -- 25) WFLYSRV0010: Deployed "engine.ear" (runtime-name : "engine.ear") 2022-07-15 14:45:44,982+03 INFO [org.jboss.as.server] (ServerService Thread Pool -- 25) WFLYSRV0010: Deployed "apidoc.war" (runtime-name : "apidoc.war") 2022-07-15 14:45:44,982+03 INFO [org.jboss.as.server] (ServerService Thread Pool -- 25) WFLYSRV0010: Deployed "ovirt-web-ui.war" (runtime-name : "ovirt-web-ui.war") 2022-07-15 14:45:45,015+03 INFO [org.jboss.as.controller] (Controller Boot Thread) WFLYCTL0183: Service status report WFLYCTL0186: Services which failed to start: service jboss.deployment.subunit."engine.ear"."bll.jar".component.Backend.START: java.lang.IllegalStateException: WFLYEE0042: Failed to construct component instance WFLYCTL0448: 2 additional services are down due to their dependencies being missing or failed