If you get an error message or the Store/Garage are showing blank for you it indicates there's a communication issue with Google Play Store.
You just need to clear the cache for your Google Play Store app:
- On your device, tap Settings
- Tap Apps
- Find Google Play Store and tap on it
- Tap Storage
- Here you can clear the cache
- Reboot Grass Roots
If these steps don't match for your device, please search online for how to clear Google Play Store cache on your particular device.
Once you've done the above steps, if you still cannot access the Store or Garage, try uninstalling and reinstalling Grass Roots - don't worry, this will not lose your progress!