Warning: Cannot modify header information - headers already sent by (output started at D:\inetpub\wwwroot\Ecampus\Student_support\blackboard_videos.php:1) in D:\inetpub\wwwroot\Ecampus\Student_support\header.php on line 1

Fatal error: Uncaught ArgumentCountError: mktime() expects at least 1 argument, 0 given in D:\inetpub\wwwroot\Ecampus\Student_support\footer.php:4 Stack trace: #0 D:\inetpub\wwwroot\Ecampus\Student_support\footer.php(4): mktime() #1 D:\inetpub\wwwroot\Ecampus\Student_support\blackboard_videos.php(105): include('D:\\inetpub\\wwwr...') #2 {main} thrown in D:\inetpub\wwwroot\Ecampus\Student_support\footer.php on line 4