Game Not Loading & Received Error Code: 0x80070002

I purchased MC Dungeons 3 days ago, but after the 3rd day, it started saying "syncing data" non stop and would not launch. I tried restarting the game several times and then restarted the computer and continued to get the same "syncing data" message without loading.

Today when I restarted the computer, I got the following message: "Something went wrong launching your game" Error code: 0x80070002. I've attached a screen shot of the error code.
Please Help!