I got this message: You've found a Hidden Opponent!

Angry Angry Arnold challenges you to a fight in the Battle Coliseum!

When I clicked on it it went to a page that said URL not found. It did that yesterday when I had a message that said something about the wizard needing my help. Could there be a problem with my computer? I use firefox. Any help is appreciated. Thank you.

i know that the wizard event is just glitched, so if its the same thing - its not your computer, the events are just broken. its possible that if you go to the battle area, the opponent will be in there.

Thank you!