Z axis not moving after computer automatically restarts.

I used a USB to connect my computer to the TAZ 5, however my computer automatically rebooted, this eventually led to the Z axis on my TAZ 5 to stop moving. Only the X and Y axis can move. I tried to reinstall CURA however it still didn’t do anything. CURA eventually gave me a warning " 1 plugin from the previous session is still active" What should I do?