Thanks for you reply,

I have done what you said : I create a first Page with an image and some text which will be my homepage then I create another page with nothing in it. Then I setup the first one on the homepage then the second one on the post page.
I saved the config and it works but then I refreshed my homepage and I get again the same as before i.e nothing between the navigation part and the footer. Everything desapeared

I have also set on disabled all the banner slider,latest news,featured,video,recent post and
hero slider

On your screenshot you wrote assign blog page her… I can’t read the rest maybe it is important

https://prnt.sc/nvwf3c

I don’t understand why it doesn’t work…