There are two bugs that two users had reported recently, thanks for doing so.
I have detected them and as soon as I got some free time, I'll fix them and publish and update.
One of the bug made the app crash when the TTS engine failed, and the other one crashed the app as well when you use the "Goggles" app to scan the barcode in the bingo cards.
I'll have some time in the next 5 days so stay tuned.
Thanks again for reporting them. Regards!