If you receive a "2FA code error" message after you input your Google Authentication code, please try the solutions below:
1. Synchronize the time on your mobile phone (to synchronize your Google Authenticator app) and your computer (from which you attempt to log in);
2. Change the browser or use Google Chrome's incognito mode to log in;
3. Clear your browser cache and cookies;
4. Try to log in from the CoinTR app instead.