@dcginmd I’ve just tried to resurrect this module in my mirror, and hit exactly the same problem.
One thing I do note is that to get things working on the website, you need to use https:// rather than http:// . If you try unsecure http to the website you get an unauthorised token error.
Unfortunately adding https in the MM config still just gives the “loading…” message forever still, but I think we might be hitting such an issue here?
The GH repo hasn’t been touched in 3 years though, so I think this is a dead module unfortunately…