What's Going On w/the Off-Topic Board?

Accessing the Off-Topic Board has been "Hit-or-Miss" lately. I think it may have to do with the site's links associated with the (2) message board buttons.

If I click the button for "Main Board", it takes me to: https://forum.broadwayworld.com/

If I click the button for "Off Topic", it's a gamble as to where I'll end up. More often than not (lately), it sends me to that same https://forum.broadwayworld.com/ address (for the Main Board). I was able to access the Off-Topic Board and post a new thread this morning, but I didn't pay attention to the site address...

I continue to intermittently get misdirected away from the off-topic board today, but I'm also finding that when I post replies (on either the Main Board, or the Off-Topic), I get this error message:

"Gateway time-out Error code 504