ngrok validation error

[4irelabs-kostiantyn]

Failed to register ngRok URL when trying to follow instructions. I always get the same validation error:
{"code": 50035, "errors": {"interactions_endpoint_url": {"_errors": [{"code": "APPLICATION_INTERACTIONS_ENDPOINT_URL_INVALID", "message": "The specified interactions endpoint URL could not be verified."}]}}, "message": "Invalid Form Body"}

[brendan]

You closed this, what was the fix? was working last night for me and now it just doesnt.

[Noel Espino Córdova]

You closed this, what was the fix? was working last night for me and now it just doesnt.

Here is the solution