Migrating from 5.0.5 YouTrack InCloud to 5.0.6 YouTrack Standalone

Hello,
When following these instructions:

http://confluence.jetbrains.com/display/YTHB/Migrating+from+YouTrack+InCloud+to+YouTrack+Standalone#MigratingfromYouTrackInCloudtoYouTrackStandalone-MigratingtoaNewYouTrackStandaloneInstallation

I get this error:

HTTP Status 500 -
type Exception report

The server encountered an internal error () that prevented it from fulfilling this request.

exception

java.lang.RuntimeException: Your database was touched by YouTrack build 7565. Downgrade is denied, please restore your database from backup.
    jetbrains.charisma.main.YouTrackInit.checkTouchedByBuild(YouTrackInit.java:326)
    jetbrains.charisma.main.YouTrackInit.init(YouTrackInit.java:73)
    jetbrains.charisma.main.InitWebApplicationServiceLocatorListener.onAfterInit(InitWebApplicationServiceLocatorListener.java:9)
    jetbrains.springframework.configuration.runtime.ServiceLocator.fireLocalAfterInit(ServiceLocator.java:112)
    jetbrains.charisma.main.ServletImpl.init(ServletImpl.java:70)
    javax.servlet.GenericServlet.init(GenericServlet.java:212)
    org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
    org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
    org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:859)
    org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:579)
    org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1555)
    java.lang.Thread.run(Unknown Source)

note The full stack trace of the root cause is available in the Apache Tomcat/6.0.26 logs.