Pangu 7.1.2 Problem.

Hello. I jailbreaked my phone a few monts ago and then got rid of it by downloading an official update.
A few days ago i wanted to jailbreak my phone again. But when i opened Pangu, (with the cable plugged in of course) it said already jailbroken. However im on ios 7.1.2
IPhone 4, ios 7.1.2