Check McDonalds Prep Timer app permissions. If any of these permissions required to use your device's features are disenabled, McDonalds Prep Timer might not work.
Uninstall and reinstall McDonalds Prep Timer. If nothing else has worked, completely uninstall McDonalds Prep Timer then reinstall.
Restart your device. Last, restarting your device can often clear most problems causing McDonalds Prep Timer not working
2. Fix McDonalds Prep Timer Server issues & Internet Connection
Check network connection: An unstable Internet will make McDonalds Prep Timer be unable to connect to it's servers. Ensure your wi-fi is working then restart app.
Disable VPN: VPN can cause connection errors and lead to McDonalds Prep Timer not working. Make sure all VPNs are off
Enable background data: When Background data is turned off, McDonalds Prep Timer may not be able to connect to the Internet when running in the background.
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