Try clearing it from notifications > downloads -press options and delete it, then have a look in storage > apps and see if there is any game data there, if so delete that too.
Restart the console (power options-restart) and try again
Try clearing it from notifications > downloads -press options and delete it, then have a look in storage > apps and see if there is any game data there, if so delete that too.
Restart the console (power options-restart) and try again