In case you are trying to login to the HEIMDAL Dashboard but the verification codes generated by the Google Authenticator are invalid, this is most likely because the app is not synced correctly. You can try the following:
1. Go to the main menu on the Google Authenticator app.
2. Tap Settings.
3. Tap Time correction for codes.
4. Tap Sync now.
1. Tap on Settings.
2. Tap on General.
3. Tap on Date & Time -> Set Automatically.