Fatal error: Uncaught Error: Interface "Illuminate\Contracts\Validation\Rule" not found in /home/techguruuico/public_html/mailuai.com/vendor/mettle/sendportal-core/src/Rules/NotEmpty.php:7 Stack trace: #0 {main} thrown in /home/techguruuico/public_html/mailuai.com/vendor/mettle/sendportal-core/src/Rules/NotEmpty.php on line 7