Unable to Fetch API's on M2M Application Quickstart

I’m getting the same error as well.

I’ve checked my logs and it says:

{
  "date": "2023-03-30T07:18:57.582Z",
  "type": "feccft",
  "description": "Extensibility internal error",
  "connection_id": "",
  "client_id": "frcQ2fTWLiV0UqRlLLsCrQrEs8Xbn3Km",
  "client_name": "API Explorer Application",
  "ip": "35.167.74.121",
  "hostname": "dev-rl7kjzjpo7helwyy.uk.auth0.com",
  "user_id": "",
  "user_name": "",
  "audience": "https://dev-rl7kjzjpo7helwyy.uk.auth0.com/api/v2/",
  "scope": null,
  "log_id": "90020230330071857601268000000000000001223372036856050866",
  "_id": "90020230330071857601268000000000000001223372036856050866",
  "isMobile": false,
  "user_agent": "Other 0.0.0 / Other 0.0.0",
  "id": "90020230330071857601268000000000000001223372036856050866"
}