Notice: Undefined variable: auth in /var/www/tss2021/1.0/registration.php on line 82

Fatal error: Uncaught Error: Call to a member function isLoggedIn() on null in /var/www/tss2021/1.0/registration.php:82 Stack trace: #0 {main} thrown in /var/www/tss2021/1.0/registration.php on line 82