First of all make sure TIME/DATE are correct on your device

1.~ From the device home screen click SETTINGS>APPS

2.~ On the 2nd line (system apps) scroll along to GOOGLE PLAY STORE

3.~ Click CLEAR DATA>OK>UNINSTALL UPDATES>OK>OK again

4.~ Go back one screen and click GOOGLE PLAY SERVICES

5.~ CLEAR DATA>OK>CLEAR ALL DATA>OK

6.~ UNINSTALL UPDATES>OK>OK again

7.~ Return to the home screen, open APPS or MY APPS>PLAYSTORE

It should now work, if it does not work restart your router and device

**************************************************

See also,opens in new tab CLICK HERE>> SET TIME/DATE

See also,opens in new tab CLICK HERE>> PLAY STORE NOT WORKING FIX FOR ANDROID 4 DEVICES

See also,opens in new tab CLICK HERE>>PLAY STORE ALTERNATIVES