Fatal error: Uncaught TypeError: App\controllers\Applicant::logout_student(): Argument #1 ($id) must be of type int, null given, called in /home/dicascho/public_html/students/logout.php on line 13 and defined in /home/dicascho/public_html/app/controllers/Applicant.php:544 Stack trace: #0 /home/dicascho/public_html/students/logout.php(13): App\controllers\Applicant->logout_student(NULL) #1 {main} thrown in /home/dicascho/public_html/app/controllers/Applicant.php on line 544