fix

admin/control/refill_company.php

@@ -14,6 +14,7 @@ class refill_companyControl extends SystemControl
         if(!empty($_GET['co_name'])) {
             $cond['co_name'] = ['like', '%'.$_GET['co_name'].'%'];
         }
+        $_GET['co_type'] = $_GET['co_type'] ?? 'merchant';
         if(!empty($_GET['co_type'])) {
             $cond['co_type'] = $_GET['co_type'];
         }