500 Internal Server Error Test API

Using the documentation area of this site to test API requests or Postman are all giving me the following:

{
“title”: “Internal error”,
“reason”: “INTERNAL_ERROR”,
“detail”: “Internal error has occurred”,
“status”: 500
}

Is anyone else having this? How do I resolve it? Live chat is no use either.

This should be resolved in the next few minutes, it appears to be related to a username update that’s now been corrected.

I still have issues, every call I try to make with the right api key ends up with error 500