If software is unable to start and is displaying long error message then that means that it was not closed properly when you last time run it. This can happen if computer is shut down because it lost power suddenly or because of your hardware/software failure.
You will need to restore default settings by using "Start->Programs->Bf Bot Manager->Configuration editor" tool.
This will remove all software related settings from your computer and you will need to reenter your license key on next start.