It seems a DB migration failed; you can find the error in the log file after 
startup, above of the messages you posted.

It is likely that it is the statistics migration

You can try the SQL statements from here:
  http://jira.xwiki.org/browse/XWIKI-8129

as found in the release notes of 4.3:
  
http://www.xwiki.org/xwiki/bin/view/ReleaseNotes/ReleaseNotesXWiki43#HGeneralNotes

If it is not the statistics, please locate the error from the failed migration
(should be somewhere after the line: "Checking Hibernate mapping and updating 
schema if needed for wiki [xwiki]" )

HTH
Clemens


----- Urspr√ľngliche Nachricht -----
Von: Jhaimerl
Am:  Tuesday, 28.06.2016, 09:59
An: Xwiki Users
Betreff: [xwiki-users] Can't Upgrade from XWiki 3.5.1


> Hi,
> 
> I'm trying to upgrade an existing XWiki Instance (V3.5.1). It's running with
> a MSSQL database.
> 
> I already tried the following (see referenced links below) and upgrades to
> different higher versions of XWiki e.g. 4.x, 5.4.x. However I always get
> this exception http://pastebin.com/yeaFQAtt.
> 
> http://xwiki.475771.n2.nabble.com/Another-migration-problem-3-5-to-4-1-3-td7580726.html#a7580809
> http://lists.xwiki.org/pipermail/users/2012-August/023537.html
> http://xwiki.475771.n2.nabble.com/Failed-migration-from-3-0-to-4-3-1-td7583304.html
> 
> Does somebody have any hints how to solve this?
> 
> Many thanks in advance!
> 
> 
> 
> 
> 
> --
> View this message in context: 
> http://xwiki.475771.n2.nabble.com/Can-t-Upgrade-from-XWiki-3-5-1-tp7600118.html
> Sent from the XWiki- Users mailing list archive at Nabble.com.
> _______________________________________________
> users mailing list
> users@xwiki.org
> http://lists.xwiki.org/mailman/listinfo/users
> 
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