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/includes/class/Graphs.php:2631
Stack trace:
#0 /var/www/html/includes/class/Graphs.php(2631): mysqli->prepare()
#1 /var/www/html/graph/graphAuxPlo.php(155): Graphs->getFamilyName()
#2 {main}
thrown in /var/www/html/includes/class/Graphs.php on line 2631