I was talking with your tech guy Piyush Ranjan, after an hour of work, he could not help me and disconnected the phone and join.me. and did not get back to me.
This is a user-to-user forum.
You will need to be much more descriptive in "does not work".
Plus, what exact version of LR are you using?
Which operating system?
Which version of the plugin and who is it from?
I believe the issue is resolved now as we were able to get the smugmug plugin work normally again.
Here are some more reference articles for you related to Smugmug plugin :
Yes, it works now. thanks.