It seems that this mod took the site down this morning. While the servers are far more powerful then before, this plugin is putting undue load on the database due to very poorly written database queries and the poor database design of SMF.
Seriously consider dumping it as it doesn't work as you'd expect.
Even turned off it's still polling the server every ~10s.
When I had poor internet, ~1.7 mbs in off peak times, this addon would've helped hog what little BW I had and quietly chewed away at my data cap so I feel for anyone that's still on poor internet as this addon adds little value to the forum.
Thanks for your great work as always gnif.