Sign up for bandai account in Web browser, log in to it in Web browser and save password in Chrome or whatever you're using.
Then link in the options of the game, if you are using chrome you're already good for autofill if not click the box you put in the email, hit the blue tear drop it will say autofill. Log in, you may have to back out of it and go back in but I got an error as well linking the accounts but it was linked.
Or download fvfile explorer. Follow their steps to get access to android/data. Find the DBZ folder.
Bandai.somehtinghere.legends
Something like that. Find the file that starts with bb8 I wanna say. But copy that to another folder you can get to like downloads. Uninstall the game. Reinstall new mod.....dont do anything yet. Go thru start a new game and play until the fight with broly is over. Go back to the same place you found that file in Android/data/bandai/files/bb8.....if its there go ahead and rename it to whatever i add (1) to the end its just the backup so go ahead and copy the first one from earlier into that folder force close the game reopen and thank me in the morning