If this is the same problem as others in this thread, here is what you need to do.
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Use PaperUI to remove the Z-wave 2.4 binding
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Use sudo systemctl stop openhab2
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Delete both the /var/lib/openhab2/tmp and /var/lib/openhab2/cache folders
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Copy the latest zwave 2.5 shapshot into /usr/share/openhab2/addons folder
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Restart openhab2
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Type: sudo openhab-cli console
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Type: feature:install openhab-transport-serial
That is what I did. If that doesn’t do it, I can’t help. I probably can’t answer too many questions either as I am at the limit of my knowledge