This plugin uses the Minify engine to combine and compress JS and CSS files to improve page load time.
If you are having problems with this plugin, please first take a look at the various links under the "Documentation" section of the plugin page.
Please take a look at documentation available on the plugin page. to see if any of them can help you. If not, feel free to post your issues on the appropriate plugin support forum. I will try my best to help you resolve any issues that you are having.