Azure Front Door showing "Degraded (Unplanned)" from 1 month everyday

Azure Front Door profile that is continuously showing “Degraded (Unplanned)” under Resource Health from more than a month

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This is what been displayed "We are sorry, your Front Door/CDN profile may be experiencing problems. We're working to determine and address the source of the problem. No additional action is required from you at this time."

The issue is affecting multiple users from different locations, and users are intermittently experiencing issues while accessing applications/URLs hosted behind Azure Front Door.

In Resource Health, we can see multiple Degraded (Unplanned) events.

Could you please help us understand:

1. What could cause Azure Front Door to show Degraded (Unplanned)?
2. How can we identify the root cause of these recurring health events?
3. Are there any recommended troubleshooting steps we should perform from the Azure side?

We would appreciate your guidance on how to investigate this issue further.