Fatal error: Uncaught Error: Class "Laravel\Socialite\AbstractUser" not found in C:\Servers\htdocs\inventory.fitzalan.co.uk\vendor\laravel\socialite\src\Two\User.php:7 Stack trace: #0 {main} thrown in C:\Servers\htdocs\inventory.fitzalan.co.uk\vendor\laravel\socialite\src\Two\User.php on line 7