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 ----- Ursprüngliche 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 > email@example.com > http://lists.xwiki.org/mailman/listinfo/users > _______________________________________________ users mailing list firstname.lastname@example.org http://lists.xwiki.org/mailman/listinfo/users