Problem when opening IvyAdmin after migration

Hi everyone,

Currently, I have encountered a problem after migration of the ivy engine (From 6.3 to 7).

After successfully converted the database, I cannot open the Ivy Admin anymore. The error message I got is

There is no process model version released for process model 'Administration' of application 'System'. You can check the log below.

Later on, I have to manually change the database of the engine, so that the process model of Administration is released. Could there be something not working correctly during conversion?

14:01:55.838 WARN [ch.ivyteam.ivy.webserver.internal.exception] [http-nio-8082-exec-1] [requestId=497, executionContext=SYSTEM, client=0:0:0:0:0:0:0:1] 
  Problem while processing request 'http://localhost:8082/ivy/pro/System/Administration/115D746C75FAF428/start1.ivp'
    [errorId=160D9B9B9FFDD331, requestId=497, executionContext=SYSTEM, client=0:0:0:0:0:0:0:1]
    ch.ivyteam.ivy.request.RequestException: There is no process model version released for process model 'Administration' of application 'System'.
     at ch.ivyteam.ivy.request.RequestException$RequestExceptionBuilder.build(RequestException.java:166)
     at ch.ivyteam.ivy.webserver.internal.AbstractServlet.findProcessModelVersion(AbstractServlet.java:305)
     at ch.ivyteam.ivy.webserver.internal.AbstractServlet.analyzePathForProcessModelVersion(AbstractServlet.java:391)
     at ch.ivyteam.ivy.webserver.internal.process.IvyProcessServlet.doRespondAsSystem(IvyProcessServlet.java:47)
     at ch.ivyteam.ivy.webserver.internal.AbstractServlet.prepareRespondAsSystem(AbstractServlet.java:230)
     at ch.ivyteam.ivy.webserver.internal.AbstractServlet.access$3(AbstractServlet.java:212)
     at ch.ivyteam.ivy.webserver.internal.AbstractServlet$2.call(AbstractServlet.java:190)
     at ch.ivyteam.ivy.security.internal.SecurityManager.executeAsSystem(SecurityManager.java:1313)
     at ch.ivyteam.ivy.webserver.internal.AbstractServlet.doService(AbstractServlet.java:184)
     at ch.ivyteam.ivy.webserver.internal.AbstractServlet.doGet(AbstractServlet.java:168)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:635)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
     at ch.ivyteam.ivy.webserver.internal.exception.IvyExceptionFilter.doFilter(IvyExceptionFilter.java:49)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
     at ch.ivyteam.ivy.webserver.internal.IvyFilter.doFilterInternal(IvyFilter.java:247)
     at ch.ivyteam.ivy.webserver.internal.IvyFilter.doFilter(IvyFilter.java:152)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
     at ch.ivyteam.ivy.webserver.internal.IvyExecuteAsSystemFilter$1.call(IvyExecuteAsSystemFilter.java:45)
     at ch.ivyteam.ivy.webserver.internal.IvyExecuteAsSystemFilter$1.call(IvyExecuteAsSystemFilter.java:1)
     at ch.ivyteam.ivy.security.internal.SecurityManager.executeAsSystem(SecurityManager.java:1313)
     at ch.ivyteam.ivy.webserver.internal.IvyExecuteAsSystemFilter.doFilter(IvyExecuteAsSystemFilter.java:39)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
     at org.apache.catalina.filters.HttpHeaderSecurityFilter.doFilter(HttpHeaderSecurityFilter.java:124)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
     at ch.ivyteam.ivy.webserver.internal.duplicate.IvyDuplicateRequestFilter.doFilter(IvyDuplicateRequestFilter.java:74)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
     at ch.ivyteam.ivy.webserver.internal.startup.IvyEngineUnavailableFilter.doFilter(IvyEngineUnavailableFilter.java:46)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
     at com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:89)
     at com.google.inject.servlet.ManagedFilterPipeline.dispatch(ManagedFilterPipeline.java:120)
     at com.google.inject.servlet.GuiceFilter.doFilter(GuiceFilter.java:135)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198)
     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
     at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:478)
     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)
     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:80)
     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
     at ch.ivyteam.ivy.webserver.internal.PerformanceLogValve.invoke(PerformanceLogValve.java:55)
     at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)
     at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:799)
     at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
     at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868)
     at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1457)
     at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
     at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
     at java.lang.Thread.run(Thread.java:748)