'CF_TRACE=true cf login -u admin' produces the output below. What might the problem be?

REQUEST: [2016-08-30T13:07:02-04:00]
GET /v2/organizations?order-by=name HTTP/1.1
Host: api.example.com
Accept: application/json
Authorization: [PRIVATE DATA HIDDEN]
Connection: close
Content-Type: application/json
User-Agent: go-cli 6.21.1+6fd3c9f / linux

RESPONSE: [2016-08-30T13:07:02-04:00]
HTTP/1.1 500 Internal Server Error
Connection: close
Content-Length: 21
Content-Type: text/plain
Date: Tue, 30 Aug 2016 16:07:17 GMT
Server: nginx
X-Vcap-Request-Id: 04164af8-e82a-47aa-50be-3bef1b25ab0c

Internal server error

API endpoint: https://api.example.com (API version: 2.59.0)
User: admin
No org or space targeted, use 'cf target -o ORG -s SPACE'
FAILED
Error finding available orgs