Re: Sudden gems and coins
You have what is called the resources doubling bug, your resources (mints, coins, gauntlets, sprouts and gems) keep on increasing until the game can no longer handle the numbers involved and the coins go to zero and you can't play the game anymore.
You have to contact EA HELP by tapping help at the bottom of the page and they can fix it.
I cannot possibly advise you to spend as many gems as possible on buying seeds before EA resets your account resource levels to what they were before, which is what players normally do.
Screenshot your player id just in case.