fix request

app/Http/Requests/ReportUserChargeRecordRequest.php

@@ -16,7 +16,7 @@ class ReportUserChargeRecordRequest extends Request
             'uid' => 'required|integer|exists:users,id',
             'status' => 'required|integer',
             'type' => 'string',
-            'content' => 'required|string',
+            'content' => 'string',
             'config_percent' => 'numeric',
             'report_percent' => 'numeric',
         ];