diff --git a/backend/routes/auth/iframe/vk.js b/backend/routes/auth/iframe/vk.js
index b138a04..19dbf8a 100644
--- a/backend/routes/auth/iframe/vk.js
+++ b/backend/routes/auth/iframe/vk.js
@@ -4,14 +4,18 @@ const md5 = require('js-md5');
 const { generateRandomUrl } = require('../guest');
 
 module.exports = async (req, res) => {
+  if (!CONFIG.SOCIAL.VK_IFRAME.ENABLED) return res.send({ success: false, error: 'Unsupported Method' });
+
   const { query: { viewer_id, auth_key } } = req;
 
   const checksum = md5(`${CONFIG.SOCIAL.VK_IFRAME.APP_ID}_${viewer_id}_${CONFIG.SOCIAL.VK_IFRAME.SECRET}`);
 
-  if (checksum !== auth_key) return res.send({ success: false, error: 'cant login or no such user' });
+  if (checksum !== auth_key) return res.send({ success: false, error: 'No such user (1)' });
 
   const user = await User.findOne({ _id: `vk:${viewer_id}` }).populate('routes');
 
+  if (!user) return res.send({ success: false, error: 'No such user (2)' });
+
   const random_url = await generateRandomUrl();
   return res.send({ success: true, user: { ...user.toObject(), id: user._id, random_url } });
 };