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Warning: include(): Failed opening 'includes/header.php' for inclusion (include_path='.:/opt/cpanel/ea-php82/root/usr/share/pear') in /home2/bootcamp/public_html/courses.php on line 2

Warning: Undefined variable $d in /home2/bootcamp/public_html/courses.php on line 15

Fatal error: Uncaught Error: Call to a member function selectQueryInArray() on null in /home2/bootcamp/public_html/courses.php:15 Stack trace: #0 {main} thrown in /home2/bootcamp/public_html/courses.php on line 15