Fatal error: Uncaught Error: Interface "Illuminate\Contracts\Validation\Rule" not found in /home/iunowfun/public_html/Webpanel2.3/vendor/zgabievi/laravel-promocodes/src/Rules/ValidPromocode.php:8 Stack trace: #0 {main} thrown in /home/iunowfun/public_html/Webpanel2.3/vendor/zgabievi/laravel-promocodes/src/Rules/ValidPromocode.php on line 8