Facebook oEmbed warning

I just got an alert

Permission revoked for creating a negative user experience in violation of our Platform Policies.
In working to create a great Platform experience for everyone, we ask developers to ensure the apps they build comply with our Platform Terms. Your app does not comply with the following:
Platform Terms: 3.b.i-iii
Since we’re striving to improve the Platform experience, your app’s ability to access the following has been revoked:

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If you believe the permission(s) has/have been incorrectly revoked, you can reapply for the permission(s) from the developer dashboard.
Facebook Developer Operations Team