Resources with a “?” in the URL are not cached by some proxy caching servers. Remove the query string and encode the parameters into the URL for the following resources:
https://www.parupedia.com/wp-content/plugins/wp-minify/min/?f=wp-content/themes/thesis_184/custom/layout.css,wp-content/themes/thesis_184/custom/custom.css&m=1341427628
getting this problem please help me