smush totally destroyed my sight

I installed smush and bulk optimized images and after 300 images it finished. Now nothing appears on my site, it is totally fried. I need help asap!
Everything is broken. no images, menu broken
images are still in media library though not sure what images were smushed because it doesnt tell you.
so if i disable caching then everything reappears correctly, enable and site goes to pieces?
cache was enabled when images were smushed.