How to set up the correct display of reposts from the site on VK and FB?

Question

Facebook

Good afternoon! I have a problem that when reposting articles from the site's blog on VK, a photo is not added to them. And if I repost a product on FB, then the photo in the repost window is shown and then there is a message on the FB page, but the photo is not displayed, as if it was not loaded. How and where to write the title that will be displayed for repost comments for social networks