Microsoft Team Webhook Connector http 500 - possible outage?

Is there an outage for Webhook connectors? It was working fine till today. All of sudden none of the channels are receiving incoming web hooks. I've tried creating a new channel and adding a new connector. When running the web-hook via post man it returns http 500.

https://docs.microsoft.com/en-us/microsoftteams/platform/webhooks-and-connectors/how-to/connectors-using