/v2/phone/numbers 401 Unauthorized: “{“code”:124,”message”:”Invalid access token.”}”

API Endpoint(s) and/or Zoom API Event(s)

Which App Type (OAuth / Chatbot / JWT / Webhook)?

We have started getting this error for one of our clients with /v2/phone/numbers.
Other endpoints work as expected for this client.
Other clients that use the same flow do not get this error.
There were no changes on our side.

“{“code”:124,”message”:”Invalid access token.”}”

Would it be possible to investigate why specifically this request fails for specific client? I can provide more details privately if needed.