Error Domain=com.alamofire.Fehler.Serialisierung.Antwort Code=-1011 "Anfrage fehlgeschlagen: verboten

Kann mir jemand helfen, zu beheben, folgende Fehlermeldung

--> Immer Fehler bei der Verwendung von "Delete" - Methode in AFNetworking 2.5

Error Domain=com.alamofire.error.serialization.response Code=-1011 "Request failed: forbidden (403)" UserInfo=0x7fec59455ac0

com.alamofire.serialization.response.error.response=<NSHTTPURLResponse: 
0x7fec59458aa0> {
 URL: http://server.net:8081/api?JobId=4&UserId=13&X-API-KEY=89823424323432424khk234kj34kj235jk 
} 

{ 
    status code: 403, headers 
    {
        Connection = "Keep-Alive";
        "Content-Length" = 43;
        "Content-Type" = "application/json; charset=utf-8";
        Date = "Tue, 17 Mar 2015 13:33:57 GMT";
        "Keep-Alive" = "timeout=5, max=100";
        Server = "Apache/2.4.10 (Win32) OpenSSL/1.0.1i PHP/5.5.15";
            "X-Powered-By" = "PHP/5.5.15";
    }
 },