Fatal error: Uncaught Error: Interface 'Illuminate\Contracts\Validation\Validator' not found in /opt/lampp/htdocs/Insurance-Integration/vendor/laravel/framework/src/Illuminate/Validation/Validator.php:23 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/Insurance-Integration/vendor/laravel/framework/src/Illuminate/Validation/Validator.php on line 23