Data Management API Autodesk Error uploading file

Code for uploading an rvt file with the Autodesk Data Management API API.

For small files I have no problem uploading, but when I want to upload a 46 MG file the program breaks.

I used curl in cmd to make these uploads, and I have not had any problem with the size of the files, Now that I want to automate the upload, with RestClient I get this error

I have tried to change / delete the "Content-Length" parameter in the call, but it still does not work.

Help, Thanks.

public static string Upload(string accessToken, string bucketName, string fileName, byte[] fileData)
    {

        var client = new RestClient();    

        client.BaseUrl = new System.Uri(baseApiUrl);    
        var request = new RestRequest();
                request.Resource"oss/{version}/buckets/{bucketname}/objects/{filename}";
        request.Method = Method.PUT;

        request.AddUrlSegment("version", "v1");
        request.AddUrlSegment("bucketname", bucketName);
        request.AddUrlSegment("filename", fileName);


        request.AddHeader("Authorization", "Bearer " + accessToken);
        request.AddHeader("Content-Type", "application/octet-stream");
        request.AddHeader("Content-Length", "48033792");


        request.AddParameter("requestBody", fileData,ParameterType.RequestBody);

        IRestResponse response = client.Execute(request);

        m_lastResponse = response;

        // Get the id = "urn:xxx" 
        string id = "";
        if (response.StatusCode == HttpStatusCode.OK)
        {
            JsonDeserializer deserial = new JsonDeserializer();
            OssBucketsObjectsResponse bucketsObjectsResponse = deserial.Deserialize<OssBucketsObjectsResponse>(response);
            id = bucketsObjectsResponse.objects[0].id;
        }
        return id; // "urn:xxx" 
    }