Fatal error: Uncaught exception 'PDOException' with message 'SQLSTATE[40001]: Serialization failure: 1213 Deadlock found when trying to get lock; try restarting transaction' in /srv/projects/io/mysql_pdo.php:280 Stack trace: #0 /srv/projects/io/mysql_pdo.php(280): PDOStatement->execute(NULL) #1 /srv/projects/io/mysql_pdo.php(191): IO_MYSQL_PDO->query_params('delete from `io...') #2 /srv/projects/io/mysql_pdo.php(938): IO_MYSQL_PDO->query('delete from `io...') #3 /srv/projects/io/mvc.core.php(1920): IO_MYSQL_PDO->delete('`iodb`.`hash`', Array) #4 /srv/projects/io/mvc.core.php(2008): IOHash->clear() #5 /srv/projects/io/app/i.cms.php(364): IOHash->set('site-1463728917...', Array, 300) #6 /srv/projects/io/app/i.sys.php(400): include_once('/srv/projects/i...') #7 /var/www/php/alpha/conf.php(46): include_once('/srv/projects/i...') #8 /var/www/php/alpha/index.php(6): include_once('/var/www/php/al...') #9 {main} thrown in /srv/projects/io/mysql_pdo.php on line 280