Error upon attempt to register for hub.darcs.net with github.com

darcsden-github-faail.md

error Sorry.. your GET request to /register/github/response?code=add360add3e8acd7e88e&state=pifygsytshhofkywtizyiuebmwfizcitsyeoevdqiscfhdoteh failed.

StatusCodeException
  (Status {statusCode = 404, statusMessage = "Not Found"})
  [ ("Server","GitHub.com")
  , ("Date","Mon, 10 Mar 2014 20:09:23 GMT")
  , ("Content-Type","application/json; charset=utf-8")
  , ("Transfer-Encoding","chunked")
  , ("Status","404 Not Found")
  , ("X-RateLimit-Limit","5000")
  , ("X-RateLimit-Remaining","4997")
  , ("X-RateLimit-Reset","1394485762")
  , ("X-OAuth-Scopes","user")
  , ("X-Accepted-OAuth-Scopes","admin:public_key, read:public_key, write:public_key")
  , ("X-GitHub-Media-Type","github.beta")
  , ("X-Content-Type-Options","nosniff")
  , ("Access-Control-Allow-Credentials","true")
  , ("Access-Control-Expose-Headers","ETag, Link, X-GitHub-OTP, X-RateLimit-Limit, X-RateLimit-Remaining, X-RateLimit-Reset, X-OAuth-Scopes, X-Accepted-OAuth-Scopes, X-Poll-Interval")
  , ("Access-Control-Allow-Origin","*")
  , ("X-GitHub-Request-Id","ADFFDBDE:3BE1:E225878:531E1BF3")
  , ("Content-Encoding","gzip")
  , ("X-Response-Body-Start","{\"message\":\"Not Found\",\"documentation_url\":\"http://developer.github.com/v3\"}")
  ]
  (CJ {expose = []})