I ran your

Hello, I ran your Hummingbird plugin and it broke my CSS. Now the text is not showing the correct font. Is there an undo, and do you know which aspect of the plugin would have broken the CSS. Is it the GZip?
I was trying to speed up my site because I recently added a shopping cart plugin. The theme we are using is Betheme (customized). https://pardonservicescanada.com/