OK, Ill go and have a play a bit more around today with it. When you say not working, do you mean with relation to using the HabMin UI (which i dont use)?
I’m not sure. The error is not related to HABmin - it’s in the standard ESH REST interfaces. Maybe the particular API is only used by HABmin, but I’m not really sure.
You might be fine leaving it - I’m just saying that based on the error, I would expect that it’s likely to cause data loss if the interface is used somewhere, so if you leave it, just keep this in mind if you have other problems.