Home button and menu broken?

Co
1

My home button and my button menu will not work anymore. So stop that on the Huawei touch screen with Lineage OS. Suddenly occurred today. Restarts of any kind do not help. Does one of you have an idea?

I thank you in advance for any answers.

Ba

It is best to reinstall LineageOS.
Remember to back up your data.
With root, it should not be a problem to backup the app data.