Music App Crashing iOS 8.1

So, the stock music app won't open, everytime I open it, it crashed.
After hours of troubleshooting, finally got the solution without restoring or resetting.

Note : my device is iPod 5G, and it was jailbroken. It may applies to other iOS 8.1 devices.

To fix this, I open cydia, go to installed tab, and choose to reinstall Cydia Installer & Cydia Substrate.Then reboot. Open the app switcher, close the music app. Open the music app.