Winsock error 6

What is the meaning of :
RegisterOnce: GetURL failed - General transport failure. - windsock error -6 - registration url -

And what is the resolution for this?

There are many existing threads in the forum for this - hint: search for winsock, not windsock

So what troubleshooting steps from the other threads have you tried and what were the results?

There is precious little that you provided in your first post to help.

Maybe this helps:
https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0023266