Missing Properties & Missing properties

I’m trying to share my articles to facebook but the featured images are not showing.

i ran the facebook developer debugging tool and came across this error notice:
Inferred Property
The ‘og:image’ property should be explicitly provided, even if a value can be inferred from other tags.

Missing Properties
The following required properties are missing: og:url, og:type, og:title, og:image, og:description, fb:app_id

PLEASE HELP WITH A FIX.

Thanks.

My website is https://thepngbulletin.com/