Please follow the below instruction.
-Press the middle button on the right-hand side of the watch (menu button)
-Select play store
-Drag down from the top of the watch until a green bar shows up. Press the one that has 4 dots (my apps) then select update all.
-The watch will update the apps, once all the apps including the Casio GSW system are updated
-Follow the steps on the g-shock move app
Then the watch should connect.