Posting forum URL on facebook looks like it has missing data?

Posting our forum URL on our Facebook page looks like it is missing some text.... Could you guys check it out and see if you can figure out what extra information Facebook is looking for to make the post fill up a bit more?

Sample image:
Vladimir Mullagaliyev
    Answer Completed
Hi Jona,
You have no META description for this forum. Fill out it in your project settings->Forums->Common Settings.
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