Specific Haven Server Glitch

Not too long ago, a friend over Discord wanted to see some wares physically in-game, but I've encountered some problems during the whole process and ended up checking through my old custom URL links.
When I was trying to access specifically Haven 3, I could not join at all and kept getting errors 100% of the time. Testing for a while more, including mission lobby that was alright, I've decided to ask them to join another Haven, which was alright. But even then, when in a different Haven (1,2, and 4 I was in), it wouldn't allow me to join 3 still. In-game, I tried sending them a message again and thought they went away from the computer for a bit until more screencaps in the Discord private chat showed.
I know how to deal with this problem alright, but in the future, I hope that other players may be able to see this as a way to either avoid this encounter or take heed of the warning.
Here are the screenshots to show evidence of what I'm referring to.
Traveling-Vanguard signing out.
/salute