Moved the thread to the Jailbreak section so the people with the knowledge base can help you. The other section was for non-jailbroken devices. Which would never see that kind of error.
Possibly a NC tweak or add-on from Cydia. Can you provide a list of all installed apps/tweaks. You'd need AppInfo and AppList installed through Cydia, both are free and for troubleshooting purposes like this.