PvZ2 game just stuck

Hello,

My pvz2 game is just stuck. I had just won stage 5 of penny’s pursuit when I hit my home button to exit the game (got called away).when I returned to the game it went through its regular start up process, but went back to the end scene I posted. It is of a game board after ridding the field of zombies just before it ends the level.

I’ve done the following to fix it:

force closed and restarted the app

restarted my phone

cleared my cache

had an customer support engineer check and see if my game was backed up, she said it wasn’t 

I’m at a loss. The support agent told me to post here. 

I’ve loved this game the multiple years I’ve had it. I’ve accrued a considerable stash of gems and coinage, and I’m scared of deleting and reinstalling and losing all of my completed levels and acquired items. 

help!