error catching

app.js

@@ -71,7 +71,7 @@ const User = sequelize.define('User', {
 });
 
 User.sync().then(() => {
-    if(process.env.ADMIN_USERNAME && process.env.ADMIN_PASSWORD){
+    if (process.env.ADMIN_USERNAME && process.env.ADMIN_PASSWORD) {
         User.create({
             telegram: process.env.ADMIN_USERNAME,
             hash: bcrypt.hashSync(process.env.ADMIN_PASSWORD, 10),
@@ -112,13 +112,17 @@ function createQRCode(telegram, done) {
             where: {
                 telegram: telegram
             }
-    }).then(user => {
+        })
+        .then(user => {
             refreshVerification(user, result => {
                 const verifyURL = `${process.env.WEBSITE_URL}/#/verify/${encodeURIComponent(result.verification)}`;
                 QRCode.toDataURL(verifyURL, { width: 300, height: 300 }, (err, url) => {
                     done(err, url);
                 })
             });
+        })
+        .catch(err => {
+            done(err);
         });
 }
 
@@ -227,7 +231,7 @@ app.get('/code', (req, res) => {
         return;
     }
     createQRCode(req.session.user, (err, url) => {
-        res.send({ error: err, data: url });
+        res.status(url ? 200 : 401).send({ error: err, data: url });
     });
 })