Disable the login challenge of the affected account for 10 minutes in the Admin console by following these steps:
- In the Admin console, go to Menu > Directory > Users.
- Click the row for the user account to display the user information page.
- Click Security.
- Click Login challenge.
- Click Turn Off For 10 Minutes.
You can use a different account.
Note: Please keep in mind that this issue can happen to any account.
For reference, you can check this link : https://support.google.com/a/answer/12077697