We have confirmed that the issue has been resolved,
feel free to reach out to us incase of any issues.
Update · UTC
For more information, please refer to Facebook's status page https://status.fb.com/graph-api
Investigating · UTC
We are aware of an issue where the bots are not responding for users on Facebook and Instagram,
Facebook support team is actively working on its resolution and we will keep you posted with the updates.
For more information, please refer to Facebook's status page https://status.fb.com/graph-api