Default jiayu g3s with me! rom port puree vanilla to update xposed grabity box ????

Hello, first of all sorry for my English, but I come to ask for help here because in HTCMania support for jiayu G3S is paralyzed in a while and as much as I post never get an answer, I use the port this rom for my jiayu, but I see that I can not update xposed throws me the following error: already installed a package with the same name with a conflicting signature.
Logically I can not update grabity box, and I just want to know if we can fix it or not, as currently is the best rom out there for this very stable and very life battery terminal.

Greetings and thank you very much.