I run the SQL statements that are in the first comment of http://jira.xwiki.org/browse/XWIKI-8129 and no rows were affected. I dropped all the records of the xwikistatsdoc table. I tried to access to XWiki and I obtained the next error: Caused by: com.xpn.xwiki.XWikiException: Error number 3005 in 3: Unable to update schema of database xwiki. Wrapped Exception: Validation Failed: 15 change sets check sum liquibase.xml::R40000-000::sdumitriu is now: 3:5865b5ffacf761b3e6fc03ea5b5c0eee liquibase.xml::R40000-001::sdumitriu is now: 3:d2fe890daecd167bbd977f271a0258fd liquibase.xml::R40000-002::sdumitriu is now: 3:7219597902c65373dac2f179d5987c37 liquibase.xml::R40000-005::sdumitriu is now: 3:a2e91d5e06f21695d158007032ca5005 liquibase.xml::R40000-006::sdumitriu is now: 3:b2105ae86b8bac177f9bf1610dff89c7 liquibase.xml::R40000-025::dgervalle is now: 3:8af140a3c413c7674d137c3766301f63 liquibase.xml::R40000-026::dgervalle is now: 3:55b00554fce13e1ac8704dbac2e34fd1 liquibase.xml::R40000-030::sdumitriu is now: 3:673621ceed663ed4756ea6eb12930de1 liquibase.xml::R40000-031::sdumitriu is now: 3:b747ced3155badaeee10c3d67486d94b liquibase.xml::R40000-032::sdumitriu is now: 3:c4ffdbe79482cc4a2a190cac58e25e72 liquibase.xml::R40000-033::sdumitriu is now: 3:7e241dce1d6e1bad3084aa939faab323 liquibase.xml::R40000-035::sdumitriu is now: 3:b3f09cf2de67420d151ad2350343459d liquibase.xml::R40000-036::sdumitriu is now: 3:9bf713063e6255eaf70882fd9c226288 liquibase.xml::R40000-037::sdumitriu is now: 3:25995410c5be9d273713f0329f4dbd1c liquibase.xml::R40000-038::sdumitriu is now: 3:933a285f3d9ffd20ba0231f811df9efe I attached the complete log of Tomcat. Exception_after_clean_xwikistatsdoc_table_in_XWiki_4.1.txt <http://xwiki.475771.n2.nabble.com/file/n7586956/Exception_after_clean_xwikistatsdoc_table_in_XWiki_4.1.txt> -- View this message in context: http://xwiki.475771.n2.nabble.com/Re-xwiki-notifications-Problems-with-XWiki... Sent from the XWiki- Dev mailing list archive at Nabble.com.