TWRP restored backup and now "google play services has stopped" pops up every second
I had a similar problem with my OnePlus.
This helped: 


Go to “Settings”
Select “Apps”
Swipe left until you in the ‘All’ column
Click on the 3 dots in top right
Select “Reset app preferences”
Reboot phone
Reselect preferred launcher


via http://blog.forret.com/2015/06/getting-rid-of-google-play-services-has-stopped-on-oneplus/