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/magazindani.rs/contents/cat_user.php:4 Stack trace: #0 /var/www/html/magazindani.rs/contents/cat_user.php(4): mysqli_query() #1 /var/www/html/magazindani.rs/index.php(519): include('...') #2 {main} thrown in /var/www/html/magazindani.rs/contents/cat_user.php on line 4