Site seems to be down altogether at the moment, "HTTP ERROR 431", just when I need it the most to help with some nasty IRROPs. Very frustrating.

I see this is a client side issue. I think it may be a problem with the auto-refresh on availability results. Which, by the way, is (a) an extremely annoying "feature" that shouldn't exist and (b) if it does exist, the refresh rate is way too high. It's far too common for me to change tabs and come back and it has errored out, or I'm still on the tab, but it keeps refreshing just as I'm scrolling through and trying to figure out what my options are.

Anyway, I started getting that 431 after a whole bunch of auto-refreshes, and deleting site data seems to have cleared it up? Before I did that, I couldn't access the homepage or anything else on the site in that browser instance. But Incognito worked.