single post page suddenly broken

Hello,

Suddenly today I have a strange problem on the single post page,
and every new post I’m publishing is broken;
in the single post page it shows the image and nothing else, nor the tags, categories, fb comment etc..

broken single posts (published today):
https://www.immaginidivertentissime.com/casualita-divertenti/
https://www.immaginidivertentissime.com/banana-su-banana/
https://www.immaginidivertentissime.com/donald-nei-cieli/

it looks like it shows the archive page instead of the single post, possible?
this what I see on the browser header..

here an example of working posts (almost all):
https://www.immaginidivertentissime.com/torre-controllo-1234/
https://www.immaginidivertentissime.com/il-gelato-perfetto-e-servito/

all the post made before today are still working,
what it can be?

I’m sorry to disturb you,

Thanks
Claudia

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