itch.io

Nevermind, that only fixed for ten seconds.
Back to the drawing board I guess.

So, you've probably already either fixed this for yourself or gotten other people's help, but apparently, based on my observations on my computer, it's a quick fix.
I was scrolling through my library after adding every game from the bundle for racial justice and equality to it. Eventually, as I downloaded things, it started to slow down until it took near thirty seconds to acknowledge I'd clicked anything. By the time stuff loaded, it gave me the error. I have tabs enabled and had the library tab open for a long time, as well as numerous other tabs from over a month ago. I closed them individually and opened a new library tab to keep working. I don't know what's going on there, but it's definitely CPU intensive.