Facebook link doesn't work

The Facebook link on our share buttons doesn’t work. The other ones come up, but Facebook flashes a box and then disappears.

https://www.visionfortomorrow.org/campaigns/wendys-fun-test/

Here is our Facebook page:

https://www.facebook.com/The-Vision-for-Tomorrow-Foundation-106474877670/?fref=ts

Thank you,
Angie

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