Game Addict won't activate or preview demo, gets internal server error 500

Hello All,

I recently bought the Game Addict theme and have spent the past couple of days trying to get it to work properly. I am on WordPress 4.2.2, GoDaddy hosting (windows with plesk) and I have followed several other forum posts and still get the internal server error 500 every time I try to activate or preview the demo.

I installed it through both FTP (using binary) and tried directly through wordpress. I have increased the memory for my php and server, as well as several other troubleshooting suggestions from the forums.

Is there anything else I can try?