iPhone App Closes As Soon As It Opens

I've gotten a reply to an article I posted this morning and can't open it on my iPhone. It tries to open then closes/crashes. If I do the double-click on the front button to swipe close apps, I can see that it did open with a pop-up box thats says, "opps you are not a leader in this community".

I have no problems going to the article on a desktop browser.