A database error has occurred. Did you forget to run maintenance/update.php after upgrading? See: https://www.mediawiki.org/wiki/Manual:Upgrading#Run_the_update_script
Query: REPLACE INTO `mwi_objectcache` (keyname,value,exptime) VALUES ('angletwiki-mwi_:messages:fr:lock','˴2\0','20140421144417')
Function: SqlBagOStuff::set
Error: 1142 INSERT command denied to user 'angletwiki'@'10.0.86.123' for table 'mwi_objectcache' (mysql5-8.perso)