Fatal error: Uncaught TypeError: mysqli_free_result(): Argument #1 ($result) must be of type mysqli_result, null given in /home/dpsclalg/public_html/transfer-certificate.php:588
Stack trace:
#0 /home/dpsclalg/public_html/transfer-certificate.php(588): mysqli_free_result(NULL)
#1 {main}
thrown in
/home/dpsclalg/public_html/transfer-certificate.php on line
588
