Go to system Settings>>
Accounts>>Google>>Remove
your Gmail account
Now from Settings>>Apps>>All>
Force stop, Clear data and cache
for Google Play Store and
Uninstall Updates
Again, Settings>>Apps>>All>
Force stop, Clear data and cache
Google Service Framework and
Download Manager
Now again go to settings>>
Accounts>>Google>>Add your
Gmail account
Restart your android and then
accept all the Google terms and
setup Google settings
Rerun Google Play Store and
update or install your app