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: SELECT lc_value FROM `l10n_cache` WHERE lc_lang = 'en-gb' AND lc_key = 'messages:whatlinkshere-summary' LIMIT 1
Function: LCStore_DB::get
Error: 1317 Query execution was interrupted (localhost)