"The World Is Currently Full"

I've been getting this error message all day "The World Is Currently Full" and can't log in, is this normal?

That's just a momentary warning based on how many people are in the queue before you, if you just wait and don't do anything it will eventually log you in, maybe after five to ten seconds... but could be longer.

It's also possible that if you are world visiting or data center traveling, then it will prioritize people who are actually from that world. You can try a different world if you right click on your character and Visit Another World Server. It will choose one at random that isn't congested or full.

It also gives priority to people who have an active, paid subscription to the game.