Update HA to 0.91 - zwave fail

Looks like I shot myself in the foot by deleting my components. Now I’m back on 0.90.2 and when trying to integrate z-wave I get the following:

Set up Z-Wave

Unknown error occurred

See https://www.home-assistant.io/docs/z-wave/installation/ for information on the configuration variables

Z-Wave validation failed. Is the path to the USB stick correct?

USB Path
/dev/cu.usbmodem641

Network Key (leave blank to auto-generate)

SUBMIT

I couldn’t even get this screen to pop up on 0.91, I would just get a spinning circle.