App Crashed and Won't Stay Open – Solitaire Blitz™: Lost Treasures Review

To whom it may concern: Several days ago, this app crashed on me, and it won't work still. It was right around the time of an iOS update. I tap the icon, it starts to open, but then it instantly closes again. I don't want to delete it, and re-install it again, because I'm afraid I'll lose my level that I worked so hard to reach. Can you please fix this crash, or let me know if I delete, and re-install, if it will delete my level and info already reached.
Review by Num1sabresfan on Solitaire Blitz™: Lost Treasures.