I was heading back to the Commons from Ravenwood through the tunnel to go to Unicorn Way and complete a quest, but once I entered the tunnel, the game didn't seem to load! At first I thought it was just lag, but then this message appeared saying "This area is closed right now. Please try again later" or something like that.
I am really confused! What does that message even mean?
It was just your connection at the time. If you haven't already (which I'm sure you have), just exit the game, log back in the game, and it'll go back to normal.
