Why was permission to post to the forum removed in the middle of having a question answered?

Was having trouble setting up a Plex Premium Music Library and was getting help from specifically one person. All of sudden I received a message from Plex Forums that “Sorry! You don’t have permission to post right now.” I’m not sure if I did something wrong or what the issue was. The help/support was going very well, but now I’m stuck as the post seems to have been stopped mid-conversation.

click on this link
https://forums.plex.tv/sso
and try again to post in your thread