Spirit uses the GPS in your phone to confirm that you are at an event. If the app says it can't find any events, then your GPS thinks you're not inside the area to receive points. There are several things you can do to fix this:
- Move closer to the center of the venue
- Turn on your Wi-Fi to increase GPS accuracy
- Make sure the time on your device is correct to help increase GPS accuracy (If possible set it to automatic)
- Restart your device