A. 1. Restart the app: Close the TREBEL Music app completely by swiping it away from the app switcher. Then, reopen the app and try playing a song again. 2. Clear app cache: Go to your iPhone settings, scroll down to TREBEL Music, and select 'Clear Cache' if available. This can help resolve freezing issues. 3. Update the app: Check the App Store for any available updates for TREBEL Music. Keeping the app updated can fix bugs that cause freezing.

B. 4. Reinstall the app: If the issue persists, uninstall TREBEL Music by pressing and holding the app icon until it wiggles, then tap the 'X' to delete it. Reinstall it from the App Store.