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 'GROUP BY 2_level_id ORDER BY (shop_quant+wareh_quant) DESC LI...' at line 17 in /var/www/bd/atb_central1_n.php:75 Stack trace: #0 /var/www/bd/atb_central1_n.php(75): mysqli_query(Object(mysqli), 'SELECT td_stock...') #1 /var/www/public_html/page_atb.php(68): require_once('/var/www/bd/atb...') #2 {main} thrown in /var/www/bd/atb_central1_n.php on line 75