Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 16384 bytes) in /var/www/system/library/db/mysqli.php on line 24

Fatal error: Uncaught mysqli_sql_exception: Commands out of sync; you can't run this command now in /var/www/system/library/db/mysqli.php:24 Stack trace: #0 /var/www/system/library/db/mysqli.php(24): mysqli->query() #1 /var/www/storage/modification/system/library/db.php(55): DB\MySQLi->query() #2 /var/www/system/library/session/db.php(28): DB->query() #3 /var/www/system/library/session.php(81): Session\DB->write() #4 [internal function]: Session->close() #5 {main} thrown in /var/www/system/library/db/mysqli.php on line 24