Literally doesn't work.
Ok so, I spent 17 minutes trying to get this to work on my friends SMP and I just couldn't. I tried restarting the server multiple times and putting it in hibernation multiple times as well and installing the addon multiple times as well. It's trash.
Minehut - Market
I'm sorry to hear that you are having trouble with this product. If you haven't done so already please reach out to the creator for support. If they are not able to help you can also reach out to Minehut Support.