Easy Image Optimizer broke my site!
Don't panic. Easy IO does not make any permanent changes to your site or your images, so reversing it's effects is simple. Take a deep breath, and then go turn off Easy IO. You can just deactivate the plugin, or use the Disable Optimizer button right on the Easy IO settings page.
Then, let us know (contact form below)! We want to make sure Easy IO is working great for you, but we can't read minds (still working on that), so let us know what is going on, and we'll see what needs fixing.