[Q] play store keeps crashing?? topic

so I have a Samsung Galaxy Young S6312 with stock android 4.1.2, rooted. since some days, I have been having the problem of the play store crashing as soon as I start it up, and some times even when I am not using play store, my device shows the message, unfortunately google play has stopped. I have tried some solutions, like clearing data, cache, reinstalling play store etc but to no avail. also, I read in many threads to enable the download manager, but In my device its already enabled. plz suggest a solution.
P.S: I hv latest play store, version 5.1.11

Sent from my Samsung Galaxy Young S6312