Fatal error: Uncaught Error: Interface 'Stringable' not found in /var/www/html/pusda_ngawi_83/vendor/laravel/framework/src/Illuminate/Validation/Rules/DoesntContain.php:10 Stack trace: #0 {main} thrown in /var/www/html/pusda_ngawi_83/vendor/laravel/framework/src/Illuminate/Validation/Rules/DoesntContain.php on line 10