[Q] SuperSU installed but no root access. Also cannot get into reboot mode. topic

I had rooted my grand quartoo(GT- I8552) with kingo ROOT and it was working fine. then i updated my phone. now when i click on superSu icon it says "There is no SU binary installed, and supersu cannot install it, this is a problem ! " i cannot enter into reboot mode. my phone also does not have root access now.

I have tried to again root my phone with Kingo root but the same problem exixts.

looking for help:eek: