You did not give us enough information to help YOU solve your problem. OpenHAB3 is not currently usable. The latest Stable version is 2.5.2.
Normally unstable Snapshot bindings ar ebit guranteed to work. For openHAB3, I estimate the release may be late 2021. It is not even fully functional yet. Users of SNAPSHOTS are expected to search & file issues on GitHUB.
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