I think this broken link is currently occuring because the binding has not been converted to OH 3 yet.
@Fox1 Let me know how it goes from here. I’ll be the first to admit this is a very complicated installation because you have to deploy files to the Smartthings hub.
@Fox1 Smartthings hosts their could on different servers, called shards. I’ve always been able to just use graph.api.smartthings.com but I don’t think that works for everyone. Here is an article that explains about it.