Ah shit. The bot is supposed to have code to deliberately handle that button before taking the screenshot. But it looks like they changed the code of their site so the name the code is looking for doesn't exist anymore.
Wow, purple was a fun one today. I didn't figure it out myself, and doubt I could have ever got it in a million years. But once I saw the answer, my first thought was "wow, that's really clever".
You can't un-ring a [BELL].
You can't put the [GENIE] back in the bottle.
You can't put the [TOOTHPASTE] back in the tube.
You can't unscramble a scrambled [EGG].