Minimatica Theme Error

Hi,

I downloaded the Minimatica theme about two weeks ago. Everything was working fine until this morning when I started getting this error message:

The website encountered an error while retrieving http://www.kiahmcbride.com/. It may be down for maintenance or configured incorrectly. HTTP Error 500 (Internal Server Error): An unexpected condition was encountered while the server was attempting to fulfill the request.

I contacted my host and they first thought it was a plugin that I installed. They switched my theme to a regular wordpress theme and it worked fine. I uninstalled the plugin and tried to activate Minimatica again only to get the same error message. They instructed me on how to go through MyPHPadmin to reset it using the other theme. And once again it worked perfectly. Basically, anytime I try to activate the Minimatica theme I get that error. I have the lastest version of wordrpess and everything so I’m not sure why it’s not working. I really like this theme and would like to keep using it, but I can’t figure out what’s wrong with it.