What is happening is that for some reason combined multiple pages and placed them on top of each other making the "Challenge a Country Club" button unusable. We are continuing to investigate and hope to have a fix out soon. Unfortunately we are likely not have it out before the clash ends, but we were able to find a workaround for this issue.
You are able to challenge a new club by scrolling through the list of players on this screen to the very end of the list. If you continue to scroll past all of the player names the screen will become white. Once you pass the final player name you should be able to select the button and initiate a new clash.
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