No image in the home page

Hi,

a website had hacker problem and had to start from a new template. They told me to do it and I choose your template, but I can see the images in the front page (https://www.legalizziamolacanapa.org/).If I click on the post, I get the image in the new page, but not in the home.
When Am I in the Media library I see just the new image I added in the last days but, not the old pictures from the previews website.

Can someone help me, please?

Thank you.