Facebook Link Not Working Anymore?

Hi, I was trying to link my Facebook account in social links section. But I am getting feature unavailable error screen. Is this feature not working anymore or I am the only one who is having this

Facebook Link Preview Won't Load…. How to fix it!

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Synergy Public School

My grandmother's Facebook was hacked, and the email was changed. I

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Facebook Link Preview Won't Load…. How to fix it!