Trouble Accessing

This app doesn’t work all the time. I purchased food coupons which had to be stored onto the app. I’ve had lots of trouble accessing the app, and therefore difficulty retrieving the food coupons. This coming Wednesday is Rodeo day and I’m hoping I don’t have as much trouble getting my tickets while at the rodeo. PS You can’t screenshot the coupons QR code. The photo will appear as a blank black screen.