Lynette is there away to save my rewards and not lose them?

I'm concerned for the rewards and that I can't collect anymore veggies and fruits. It won't open anymore. Once Petopia goes back, I've lost all my rewards. I can't collect anything anymore also.

I watched a youtube video that said to reset the cache and the data, which means you wipe out all your progress. The game came back on that phone, but all the progress was gone. Not the level that I'm on. All the fruit and veggies that I collected were gone. That is why I didn't want to do that.