Fatal error: Uncaught mysqli_sql_exception: Illegal argument to a regular expression. in /home/listentoit/listento.it/categoryList.php:11 Stack trace: #0 /home/listentoit/listento.it/categoryList.php(11): mysqli->query('SELECT category...') #1 {main} thrown in /home/listentoit/listento.it/categoryList.php on line 11