Open your Google Authenticator screen on your phone
When you use 2FA for the first time, you need to scan the barcode which appears in your browser with the Google Authenticator app.
When you already scanned the barcode before, skip this step and go to 5.
The Google app will give you a 6-digit code. Enter the code into the field in your browser.
Click on login to proceed. You will be redirected to your dashboard.