Can you manually check that your game is up to date please?
This video shows you how: https://www.youtube.com/watch?v=nnGGQyRnJmw
Let us know your results here, thanks.
Can you please test your connection as follows and post the details here?
June 2018 - last edited June 2018
Please try to delete the saved data linked to this game:
If you are still unable to play, please post the below information on this thread:
Fighter used (created fighter/existing fighter):