Z-Wave JS UI Driver: Failed to open the serial port Cannot lock port (ZW0100)

It’s quite the opposite:

And the official documentation:

https://www.home-assistant.io/integrations/zwave_js/#can-i-switch-between-z-wave-js-and-z-wave-js-ui

Can I switch between Z-Wave JS and Z-Wave JS UI?

You can switch between the official Z-Wave JS add-on and the Z-Wave JS UI add-on. However, but you cannot run them both at the same time. Only one of them can be active at the same time.

A guide for switching add-ons:

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