Default Play Store, Gmail crashing after a factory reset on S4 clone

Hello everybody,
Plz help me, i have a Galaxy S4 clone and it was working fine until my little borther accidentaly did a factory reset.
After That all google applications crashes ( close immediatly after openning), also i don't have the google account stuff in Settings>Accounts>Add account

I tried this without any result :
- Disable/Enable the Download Manager in Application Manager
- reset app preferences
- clearing cache and data for all google apps ( Youtube, gmail , play store ... )
- Flashing gapps from CWM recovery
- Factory reset several times

Please help and sorry for my very bad english