Was your AccuRIP on a computer that had recently crashed, been reformatted, wiped out, etc. prior to being able to properly deactivate the serial number?
AccuRIP Black Pearl users are automatically covered by Freehand's (AccuRIP manufacturer) Parachute Crash Protection Insurance Plan that covers current shipping versions (only). Staying current has its rewards.
Simply submit a tech ticket HERE through the manufacturer (Freehand Graphics) reporting the issue, tech support will help you get up and running again during normal tech support hours M-F 8am-6PM EST.