The model is iPhone12 pro, I found out that after I put in my name and pronouns, the game automatically starts Chapter 1 :(
Hmm it sounds like maybe it's running off of the old build then? If you downloaded the game, I'd try uninstalling and then reinstalling to the latest build (The Last Divine 12). It should be the one currently available on the game page. If you're playing on a browser, clearing your cache or cookies and then restarting the game might help to resolve the issue.