Please try the following:
1. Clear all background apps.
2. Restart the phone.
3. Check if you can download the music lyrics file.
4. Check the current network environment.
5. Uninstall the music player and reinstall it.
6. Check if your phone has the latest system. If not, upgrade it to the latest.
7. Back up any important data and restore your phone to factory settings.
If the issue persists, contact the Nothing Support Team for further assistance.