update

app/Http/Controllers/Api/V1/VaccineController.php

@@ -18,7 +18,7 @@ class VaccineController extends AuthController
         $this->validate(request(), [
             'name' => 'max:50',
             'type' => 'in:0,1,2',
-            'sort_type' => 'in:1,2',
+            'sort_type' => 'in:0,1,2',
         ]);
 
         $builder = Vaccine::select(['id', 'type', 'price', 'name', 'remark', 'supplier']);