You cant start the game because once u transfer ur accountyou need to wait 24 hrs to transfer it again so we need to wait
To pass the 24h transfer.
Go to any file manager.
Search for the file "Android", then to "data", look for com.bandainamcoent.dblegends_ww, and add any letter like _ww(j)
Do the same thing with the file in obb.
After changing the names of the folders, delete the modded version of db legends and install the normal one,but before you start the game go and change the 2 files back to normal _ww.... and your welcome