Fatal error: Uncaught Error: Call to a member function getAccessToken() on null in C:\xampp\htdocs\n-aos9\loginForm\loginForm.php:1377 Stack trace: #0 C:\xampp\htdocs\n-aos9\index.php(89): include() #1 {main} thrown in C:\xampp\htdocs\n-aos9\loginForm\loginForm.php on line 1377