Thanks again for opening this back up.
I'm not sure whether this is related to the addition of the SSL certificate or the recent update to JFB Connect but the Open graph image and information doesn't seem to be displaying correctly.
Here's what it used to look like
Here's what it's looking like now
I checked the Facebook opengraph debug tool for http and https and there seems to be an error and a picture missing from https
In the JFBconnect > Opengraph > Configuration > Defaults box I have:
app_id=1406527729596961
url=http://mbro35.co.uk
type=website
title=MBRO35 Epping Forest
locale=en_uk
image=https://mbro35.co.uk/images/images/site/FB_OpenGraph_Thumbnail_512x512.jpg
description=MBRO35 (Mountain Bike Riders Over 35) are a group of cyclists who ride the trails of Epping Forest. We meet at Chingford Plains car park every Saturday and ride at 11.00 am. Come and join us.
site_name=MBRO35