Runtime Error when using Supercade

So a buddy of mine got me into using Supercade for playing Third Strike online, and it seemed to work ok for a bit. I was getting runtime errors on certain pages but the site worked for the most part. I thought restarting my browser might fix the problem, but now I can’t even open the site at all. Every page I try to open at results in a runtime error. Is this just a problem with the site or is there something on my end that needs fixing? Any input on this situation is greatly appreciated.

Edit: I forgot to mention that I have tried both Firefox and Internet Explorer and have the same problem with both. Also I am running Windows 7 Pro 32-bit. If any other info is needed let me know.