Facebook Link Image Not Displaying after Debug/scrape

Hi, I’ve been trying to fix this for about 7 hours now with no avail despite trawling this forum.

I have uploaded an image on the yoast section ‘facebook preview’ then ‘facebook image’ for my latest post, I then went over to the facebook debugging tool and debugged and scraped many times after clearing the cache and it is refusing to change the image stating the following….

Invalid Image Content Type
Provided og:image URL, https://theplanetg.com/wp-content/uploads/2020/09/Veganz-Feat.jpg could not be processed as an image because it has an invalid content type.
Everything seems in order except the og:image which points to an image on my homepage, can i change this some other way?
I use Divi theme if that should make any difference, and everything is up to date. The image sizes are in line with what is recommended.

• This topic was modified 5 years, 6 months ago by theplanetg.
• This topic was modified 5 years, 6 months ago by theplanetg.

The page I need help with: [log in to see the link]