Why my phone is falling to complete resetting process

I bought a samsung galaxy S II Plus G-T I9105P From China but it come without google play store and google play services so i rooted it using an app called kingroot with the view of installing google play store and google play services by using another app called root explorer but just after installing these apps a massage saying that unfortunately google play services is not working stated poping out from time to time especially when i was opening any app so i thought of resetting my phone and after doing so my phone is falling to complete the resetting process as the same massage keeps poping up,what should i do please help