diff --git a/webapp/controller/UserController.class.php b/webapp/controller/UserController.class.php
index 4536c77f..3e770b88 100644
--- a/webapp/controller/UserController.class.php
+++ b/webapp/controller/UserController.class.php
@@ -918,23 +918,38 @@ class UserController extends BaseAuthedController {
         $params = array(
             'jwt' => $data['jwt']
         );
-        $url = LOGIN_URL + '?a=Login&c=verifyJwt';
+        $url = LOGIN_URL . '?a=Login&c=verifyJwt';
         $response = '';
         if (!phpcommon\HttpClient::postContent
             ($url,
              json_encode($params),
              $response)) {
-            myself()->_rspErr(500,  'server internal error');
+            echo json_encode(array(
+                'errcode' => 500,
+                'errmsg' => "server internal error",
+                'is_retry' => 1,
+                'retry_time' => 15
+            ));
             return;
         }
         error_log($response);
         if (empty($response)) {
-            myself()->_rspErr(500,  'server internal error');
+            echo json_encode(array(
+                'errcode' => 500,
+                'errmsg' => "server internal error",
+                'is_retry' => 1,
+                'retry_time' => 20
+            ));
             return;
         }
         $rspObj = json_decode($response, true);
         if ($rspObj['errcode'] != 0) {
-            myself()->_rspErr(500,  'server internal error');
+            echo json_encode(array(
+                'errcode' => 500,
+                'errmsg' => "server internal error",
+                'is_retry' => 1,
+                'retry_time' => 30
+            ));
             return;
         }
         if ($rspObj['account_id'] != myself()->_getAccountId()) {