I've recently discovered that my W3 Total Cache plugin for WordPress is generating a lot of errors for Minify settings and also can not export minify files to my CDN.
There is another issue related to Minify setting and Google Analytics. Probably some of that have installed the latest update of plugin have notice that Google Analytics is not showing any stats.
The only way to fix the problem at W3 Total Cache 0.9.2 for both issues is to disable Minify - Next to settings Uncheck Enable. Hopefully the next update with fix the problem