No image shows when I share my website on Facebook.

Anybody?? I need help pleaseeee

You need to set a default image for the main page that at the moment has none. og:image is empty. I used this article to help me out: https://www.wpbeginner.com/wp-themes/how-to-avoid-no-thumbnail-issue-while-sharing-post-on-facebook/

I had many posts which did not have an image so I wanted a default image to be used. You also need to make sure that any image you use is at least 200×200 or Facebook won’t use it for a thumbnail preview image.

Hope that helps.

I still cannot figure it out.
I’ve pasted the code in the function.php
I’ve downloaded and installed the Add image_src Meta Tag plugin provided in your link too
I’ve also installed WordPress SEO plugin and set an image there.
I’ve debugged it again, and it keeps giving me a warning to fix that I don’t understand a thing of it.
At least it shows my image at the og:image
but it’s still not working.

What am I missing here?

Oke……I fixed it. I have no idea what I did, but it’s working now.
I pasted this code in the header.php

<meta property=”og:image” content=”https://example.com/image.jpg”/&gt;

of course changing the url, and used an image of 250×250
(I used an image of 200x200px first, but apparently, that doesn’t work.)