How can I fix the MMI malfunction in my Audi A7?

My Audi A7's MMI system is not functioning properly. The screen is frozen and buttons are not responding. What steps can I take to troubleshoot and fix this issue?

Firstly, try restarting the MMI system by pressing and holding the Menu, Toggel, and Volume knobs simultaneously for 5 seconds. If this does not work, check if there are any software updates available for your MMI system. You can do this by going into the MMI settings and selecting 'Update software'.