Still getting it.
I altered a potential "forbidden word" in the title and description just in case that was actually the problem somehow but still got the same error message.
Because of the error message, of course, I can't schedule it either.
If any of you Auctiva guys think it's a listing-specific problem, it's the one titled "WIDE ARSED MOLE".
In the meantime, I'll keep trying (gotta list!).