Chatbot stops responding after /undo when last message is too old

[bwDraco]

I somehow managed to crash the chatbot by issuing the /undo command when the last message is too old to delete. For an example of this, see the context of this message on Root Access.

The chatbot should just return an error saying that the message is too old to delete. From examining the code, I see that the bot should have responded with TimeError: Could not reach 88mph. Instead, the chatbot simply stopped responding.

[bwDraco]

Closing as invalid because the problem has nothing to do with the chatbot itself but the host on which it was running.