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/frauenzeitschriften/public/incs/inc-connect.php:28 Stack trace: #0 /var/www/html/frauenzeitschriften/public/incs/inc-connect.php(28): mysqli->query() #1 /var/www/html/frauenzeitschriften/public/magazine/metadata.php(149): send_sql() #2 {main} thrown in /var/www/html/frauenzeitschriften/public/incs/inc-connect.php on line 28