500 Error Code when using API Explorer

Using the API Explorer and entering my app information, I am getting a 500 error code. Here are the requests and the response from API Explorer: CURL: curl -X POST --header "Content-Type: application/x-www-form-urlencoded" --header "Accept: application/json" --header "Authorization: Basic xxx" -d "username=xxx&password=xxx&extension=xxx&grant_type=password" "https://platform.devtest.ringcentral.com/restapi/oauth/token" REQUEST URL: https://platform.devtest.ringcentral.com/restapi/oauth/token RESPONSE BODY: { "errorCode": "05ed440a-bd60-43a8-a5bb-dcc2c697d36a", "message": "Internal Server Error. Consult RC Support." } RESPONSE HEADER: { "date": "Fri, 30 Dec 2016 17:46:47 GMT", "content-type": "application/json;charset=UTF-8" }