Email password mismatch

Hello,
I just added an iPad mini and now cannot open email on either of my iPads for ***@***. It still works on my iPhone. On iPad it says to enter passcode, and when I do, it tells me there's a mismatch. I followed instructions on google and changed Google password, but still cannot get into my deleted email. Help!!!!! I'm so frustrated.
You can reply to ***@***, or phone *****. I can't open email at the deleted address.