If you find a bot that doesn't work please make sure have the config for the bot (not flux) correct and you are on the current version (http://twistednet.org/~myst/Forum/index.php?topic=57.0) of Binary Flux.
If your on the current version (http://twistednet.org/~myst/Forum/index.php?topic=57.0) and the other bot is config'd correctly then submit the problem your having with the bot along with a copy of it to rapid share or another site that doesn't require user registration.
A moderator or myself will resolve the issue.