Website broken broken after updating to macOS Big Sur

So I updated my Mac OS to Big Sur and made some changes to one of the pages on my website. Now when I view my website online it’s as if the template is broken. Why does everything have a white background? it’s pc-healer.co.uk anyone one why or how to fix it?

Does it look okay in preview?

If it does, try republishing all files.

Yes, and this fixed it thanks for quick reply