every now and then the website loads a page or pages without css styling.

Every now and then a website loads without css, I then go in and clear the litespeed cache and it is fine. The website is on Panthur. Panthur has a recommended setup for the haccess file of the website in regards to information about litespped which is different from what is currently there. But when I change it to what panthur says, only the homepage appears and I get error messages for the rest of the pages. As I said, the problem with the css not appearing only happens every couple of weeks. I have been in contact with Panthur support and they assure me it is not them, but they are not experts on wordpress. The website is http://www.resarf.com.au.

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