Sir I factory resetted after showing " unfortunately email/contacts stopped " so many time...after resetting now play store/services are also not working
Well it happens sometime you have to try multiple fixes to solve play services has stopped error. These are some of the fixes I found from my research on the web and I get my error solved by following these solutions.
Empty Cache of Google Play Services
Reinstall play services updates in your android
Resetting Application preference to fix this issue
If you don't know how to apply these fixes in your smartphone you might consider this following source from where I got it fixed!