500

Internal Server Error

Declaration of extras\plugins\offlinepayment\Offlinepayment::register(App\Models\Post|App\Models\User $payable, array $params, array $resData = []) must be compatible with App\Helpers\Payment::register(App\Models\Post $post, $params, $resData = [])
In the: /extras/plugins/offlinepayment/Offlinepayment.php file at line: 130