Well almost all solutions are listed there. If you use the search feature with the search term "DCC pending" then I'm sure a bunch of other threads will popup too with more answers.
Reinstalling Excursion script will not help the problem, the message is coming from the person you're trying to receive from and is not due to any scripts you have loaded.
What files are you trying to download?
Just an FYI, ParaBrat is a female
Regards,