That happened to me and someone help me with that. All you need to do is:
EITHER SHUTDOWN YOUR DEVICE
OR
IF U HAVE A MOUSE THEN RIGHT CLICK WHERE IT SAYS THAT AND THEN CLICK RELOAD FRAME
IF U DONT HAVE A MOSE AND UR ON A CHROMEBOOK OR LAPTOP YOU CAN USE YOUR INDEX AND MIDDLE FINGER AND TAP ON THE TOUCHPAD (MAKE SURE YOUR CURSOR IS HOVERING OVER WHERE IT SAY IT NEEDS AN UPDATE. AFTER U TAP WITH YOUR INDEX AND MIDDLE FINGER THEN YOU CAN TAP RELOAD FRAME. Hope this helped