Royal Championship connection issue

Hello,

I have a connection issue with the Royal Championship. I play on iOS and when I go to play it sometimes it loads sometimes it does not. When it does, it tells me that no matches were found over and over. If after trying a long time I do get a match then I am kicked out because something went wrong. I tried connecting and disconnecting my wifi, but every other app or website works on my iPad so it is not a problem of my wifi. What can I do?

Thank you!