MY SOULTION: (WORKED FOR ME)
1 - GO TO WLAN/WIFI
2 - SCROLL DOWN TO 'APPS USING WLAN & MOBILE DATA'
3 - MAKE SURE APP STORE AND SETTINGS ARE SET TO WLAN & MOBILE IF ITS JUST WILAN OR SAYS NONE TURN IT TO WILAN & MOBILE
3 - LOG IN AGAIN IF IT DOESNT WORK TRY ANY OF THE OTHER SOULTIONS BELOW AND ABOVE THIS COMMENT IF IT WORKS, ENJOY.