Launch it and click on the 3 dots top right
Click Settings, then scroll down to “Change account for games”
find the AAO entry, and press Change, click signout
launch game and it should ask for what phone account it should use to launch the game
You posted in the TripleA support category, that is unrelated to the (mobile) game you are talking about.
So I have moved your topic to the related forum category. As you can see this topic has been brought up and answered before.
Maybe you find some interesting information there:
It’s here! After a long wait (thanks for hanging in there), the fix for the Axis & Allies 1942 Online crash on iOS is being deployed via the App Store. So you can update as soon as Apple uploads the fix.