Creative issues in Studio

Getting Submit to DART error: "There was a problem trafficking this creative."

When I click to Notify and Submit to push a creative, I receive the message "Sorry, there was a problem trafficking this creative. Please try again." What's this mean?

This could be occurring because you tried to submit a creative with "&" in its name to DFP 5. If so, remove the "&" from the creative name and try again.