Fatal error: Call to undefined function module_list() in /home/admin/web/srk-don.ru/public_html/includes/bootstrap.inc on line 1358

Uncaught exception thrown in shutdown function.

PDOException: SQLSTATE[HY000]: General error: 2006 MySQL server has gone away: DELETE FROM {semaphore} WHERE (value = :db_condition_placeholder_0) ; Array ( [:db_condition_placeholder_0] => 1773892181663f6a6c2b4745.63228852 ) in lock_release_all() (line 269 of /home/admin/web/srk-don.ru/public_html/includes/lock.inc).