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 /bs/clients/tinyjewelbox.com/code/includes/custom_mysqli_functions.php:12 Stack trace: #0 /bs/clients/tinyjewelbox.com/code/includes/custom_mysqli_functions.php(12): mysqli_query() #1 /bs/clients/tinyjewelbox.com/code/category.php(45): custom_my_sql_query() #2 /bs/clients/tinyjewelbox.com/code/index.php(110): include_once('...') #3 /bs/clients/tinyjewelbox.com/code/controller.php(2): require_once('...') #4 {main} thrown in /bs/clients/tinyjewelbox.com/code/includes/custom_mysqli_functions.php on line 12