style.css comes broken with tons of errors

the main style.css in your theme comes with tons of unexpected errors. when users are loading posts on our side they see a flash of black which is pulling from the footer for some reason. if you scroll when you open a post while its loading it quickly turns the screen black…. why is your theme’s css full of so many errors? im hoping you can fix them immediately…. or give me a fix…. thanks

The page I need help with: [log in to see the link]