I have created new cache plugin that combine all css in one file. But css is not applying

Question

I have created new css cache plugin that combine all css file in one file.

so if 29 css request are available. And then you add this pluign then your all css code will be added in one file and now only one request will be send.

This is worked in many sites. But i try in live site then all css are not loading.

This is the example that is working.I merge all css. site : http://herbsmeditations.staging.prismitsystems.com

and this is the css file that contain all css codes enter link description here

i try this same on live site but css not applying at all