safari not loading on iphone

I am having trouble with an app Casino game called "Click Fun", I play it on Facebook on my iphone and my desk top. It was working fine two days ago, but now it just spins and spins trying to load the game. When I try it with a different wi-fi it works. My wi-fi signal is excellent as I have tested it with the Apple application "WI-FI Signal". It is also happening with my desk top Mac running Mountain Lion it just stops loading half way into the load and goes round and round and round trying to load the game. It works fine with FireFox. Does anyone have any suggestions? I have no choices of browsers with my iphone so I'm kinda stuck for an answer here.