If you have a really old version of the bot the update may not work, it's always good to keep it up to data you'll need to reinstall the bot.
You can also try doing this (if does not work reinstall) go to your DeepBot file, look for update.exe and run that as admin. If that does not work do this.
VVVV
All DeepBot user data is saved in the below files:
users.bin
usersconfig.bin
chanmsgconfig.bin
DeepBot.s3
Simply backup these files from your computer and paste them after re-installing DeepBot.