Bot randomly hangs

[uwuplant]

Hello! I've been having a strange issue ever since I updated my bot instance to the latest commit (85f5285). I've been noticing that after any time from a few hours to a couple days after starting the bot, it simply doesn't respond to challenges anymore. I have modified the bot slightly, but the only change is in the engine wrapper, and thus it shouldn't have any effect. (never has in the past)

Thank you!

update: possibly related to #222?