To overcome this problem you have to login with your double click username and password or just click on update now button and update the account. If you are in the double click account page, you have to click on the link-‘sign in with your Google account’ and you can enter the information needed to Sign-in to your Google account. Suppose you are logged into your Google account but you want to log into your double click account. In such situations you have to log out of the Google account and log into your double click account as you can be logged into only one account. To resolve the issue in a better manner you can call Google customer support service team.