I had this issue with a few of my plugins when I activated JS minification. If you have JS minification, or even css minification for that matter, active under the Minify menu I would deactivate it and then clear all caches and see if those pages become active again. If it does work you can reactivate the JS/CSS minify but use your panel, usually cPanel, and go to your wordpress plugin directory (should be wp-content then plugins) and add the directory for the woo commerce, and any other plugin you are having trouble with, to the exclusions box under the Minify settings is W3 total cache. For example; if your site is underwearnation.com it would look like http// or http://www.underwearnation.com/wp-content/plugins/woocommerce to the exclusions box. I am not sure how woocommerce shows up in the plugins directory as I dont have it installed. You may have to actually find all of the directories that have .css and .js files in woocommerce and add those directories as well with a wildcard.extension after. For example: http://underwearnation.com/wp-content/plugins/woocommernce/*.css
and
http://underwearnation.com/wp-content/plugins/woocommernce/*.js
..please let me know if that helps!