Epic quest clearing
If you haven't done quests in a while, when you go in it has to clear out all the old quests which it does by telling you one by one it expired and puts up a requester that you have to clear. Tried going through them for about 10 minutes today with no end in sight, finally closed the game. Makes it so you don't want to do them at all once you fall a little behind!
@CNorborg It looks like your game glitched since I don't need to tap continue on "expired Quests" as @eieio_31310 pointed out.
Try clearing the cache of the App: https://www.androidcentral.com/how-and-when-clear-app-cache-or-data-android
Make sure to take a screenshot of your Player ID first: https://help.ea.com/en-us/help/plants-vs-zombies/plants-vs-zombies-2/find-your-player-id-for-plants-vs-zombies-2/
In case this doesn't work reinstall the App. EA can restore your profile with the player ID in case anything goes wrong.