Warning: include(/home/not/public_html/folder to upload/correction/../includes/connection-db2.php): Failed to open stream: No such file or directory in /home/not/public_html/folder to upload/correction/xuan-kong-da-gua.php on line 3

Warning: include(): Failed opening '/home/not/public_html/folder to upload/correction/../includes/connection-db2.php' for inclusion (include_path='.:/opt/cpanel/ea-php81/root/usr/share/pear') in /home/not/public_html/folder to upload/correction/xuan-kong-da-gua.php on line 3

Warning: Undefined variable $pdo in /home/not/public_html/folder to upload/correction/xuan-kong-da-gua.php on line 165

Fatal error: Uncaught Error: Call to a member function query() on null in /home/not/public_html/folder to upload/correction/xuan-kong-da-gua.php:165 Stack trace: #0 {main} thrown in /home/not/public_html/folder to upload/correction/xuan-kong-da-gua.php on line 165