@niterhk Thanks for trying out the suggestions and feedback.
Below are my guesses so it could be incorrect.
When you disabled internet data, the game cannot obtain forced ads to your game, so by bypassing the connection from the main screen, you can access the locked game modes such as Arena and Penny. When you exit these mode, the game would try to connect, load and play the forced ads, and it could be the ads which crashed the game. If this is the case, it is not something you or I can fix, this is the job for the EA Help Center, but I would only use them as the last resort as the reponse and support is frankly not that great for this kind of issue.
One option you can try is to delete the game and re-install it from fresh (as a new account) to see if this issue is cleared, If so, then proceed to reload you old account by registering with your email to recover your old saved account. If the issue returns, then this is a strong evident the data corruption is embedded in your saved data from the server so you will have no alternative but to contact EA Help Center for help.