Warning: include(includes/header.php): Failed to open stream: No such file or directory in /home2/bootcamp/public_html/course.php on line 1

Warning: include(includes/header.php): Failed to open stream: No such file or directory in /home2/bootcamp/public_html/course.php on line 1

Warning: include(): Failed opening 'includes/header.php' for inclusion (include_path='.:/opt/cpanel/ea-php81/root/usr/share/pear') in /home2/bootcamp/public_html/course.php on line 1

Warning: Undefined variable $d in /home2/bootcamp/public_html/course.php on line 13

Fatal error: Uncaught Error: Call to a member function selectQueryInArray() on null in /home2/bootcamp/public_html/course.php:13 Stack trace: #0 {main} thrown in /home2/bootcamp/public_html/course.php on line 13