Mouse and Keyboard frozen

Hey, I discovered Zorin some time ago. Since then it was an reliable system. But after a restart my mouse and keyboard wont work. Only in GRUB and Recovery Mode. I can’t do anything in the login screen. But everything else is working (network etc)

Do you have some idea about what’s wrong?

First try unplugging and replugging your devices, if both are USB. If that doesn’t work, try “Case 3” on this: