Fatal error: Uncaught mysqli_sql_exception: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '' at line 1 in /var/www/html/references/ReferencesList.php:117 Stack trace: #0 /var/www/html/references/ReferencesList.php(117): mysqli->query() #1 {main} thrown in /var/www/html/references/ReferencesList.php on line 117