http://static1.squarespace.com/static/644b6f20c7516e0a4c3379d7/t/654e5f771c0191574f1229d6/1699635071007/Christmas%2B1.jpg?format=1500w

I am getting this error message when going on to Facebook debug area. I am trying to share my bookings page from my website, but I just keep getting a blank space where the image is. Can't seem to mend it and have limited knowledge. Has anyone else had this problem? Hope someone can help. 😁