Fatal error: Uncaught Error: Class "Laravel\Socialite\One\AbstractProvider" not found in C:\Apache24\htdocs\BookStack\vendor\laravel\socialite\src\One\TwitterProvider.php:5 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\BookStack\vendor\laravel\socialite\src\One\TwitterProvider.php on line 5