I am new to android/samsung galaxy s2

[drelix]

I used my google account to sign in and it was all good for a few hours.
Then randomly I will get notfications saying Sign in error for my email address I add the password and will not log in?
I have made it gone away when sometimes going into google setting app on the Phone But is there a reason this is happening? Please help

 

[B. Diddy]

Welcome to Android Central! Where is that error message appearing? In the Notification Bar at the top of the screen, or in its own window? Are you sure the message refers to your Google account? Do you have any other apps or email accounts on your phone that require a login using a non-Google address (like Yahoo Mail)?