Whenever you run the command /openinv it returns this:
https://i.imgur.com/dpo7nh5.png
So I'm just suggesting that it either gets removed or updated, because at its current state it's useless
I don't really see the use for it being on the server in the first place considering /invsee already exists, but I suppose viewing players' enderchests could be useful, as well as the feature to search offline players
