Fatal error when trying to activate the plugin

This is what I am getting when I try to activate the plugin:

<img src=”http://oi44.tinypic.com/2d8p5w5.jpg&#8221; width=”1414″ height=”125″ border=”0″>

My theme designer says the plugin is using types of code only a theme should use and thus the conflict.

Can you update this?

Thanks!