I made some changes in my site but it’s appearing in incognito mode.

I have changed the font and sidebar ads, as well as some other things in my single post template. In the editing interface, I can see my changes were made perfectly. But when I visit my website, it’s not showing my edit’s. I tried to see the change in incognito mode also, but found the same result. It’s the first time I’ve experienced this. I’m attaching some proofs here.