Fatal error: Uncaught Error: Class "Illuminate\Support\Manager" not found in /home/lessonplannercom/public_html/backend/vendor/laravel/socialite/src/SocialiteManager.php:18 Stack trace: #0 {main} thrown in /home/lessonplannercom/public_html/backend/vendor/laravel/socialite/src/SocialiteManager.php on line 18