Fatal error: Uncaught Error: Interface "Illuminate\Session\ExistenceAwareInterface" not found in /home/sustaina/public_html/vendor/laravel/framework/src/Illuminate/Session/DatabaseSessionHandler.php:14 Stack trace: #0 {main} thrown in /home/sustaina/public_html/vendor/laravel/framework/src/Illuminate/Session/DatabaseSessionHandler.php on line 14