u

app/Http/Controllers/api/Issue.php

@@ -23,7 +23,7 @@ class Issue extends BaseController
     {
         try {
             request()->validate([
-                'date' => ['nullable', 'date', 'date_format:-m-d']
+                'date' => ['nullable', 'date', 'date_format:Y-m-d']
             ]);
             $date = request()->input('date', null);
             if (!$date) $date = date("Y-m-d");