Website Link image, title and description

Hi guys,

This would be better if I could share this print screen I have because it would show the problem way better than words but I will try to explain it.

Example: sharing my link [ redundant link removed ] on instagram DM’s.

As you can guys know when you send a link it automatically opens an image, title and description and in my case I want a different image and a different description but I can’t seem to find how to change it.

Again, sharing this print screen would be much easier.

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