I'm getting this error when calling a stored procedure from my C# code from BizTalk. Not sure whether this exception is thrown from the stored procedure or my own code, as it is in BizTalk runtime debugging is hard.

public bool ProcessDigiMarket (int marketID, long ProcessID, string processName)
{
    try
    {
        string storedProc = h.GetConfigValue(marketID, processName, "SP_GetDigiMarket");

        using (var conn = new SqlConnection(strcon))
        using (var cmd = conn.CreateCommand())
        {
            cmd.CommandTimeout = 0;
            cmd.CommandText = storedProc;
            cmd.CommandType = System.Data.CommandType.StoredProcedure;

            cmd.Parameters.AddWithValue("Mar_Id", marketID);
            cmd.Parameters.AddWithValue("ProcessID", ProcessID);

            conn.Open();
            cmd.ExecuteNonQuery();
            conn.Close();

            InsertLog("ExecuteSP for process -> " + processName + " -> Execution Complete : " + storedProc, marketID, ProcessID);
        }
    }
    catch(Exception ex)
    {
        InsertLog("ExecuteSP for Process -> " + processName + " -> Error while executing SPDigiMarketQueue: " + ex.Message, marketID, ProcessID);
        throw new Exception("Error while executing DigiMarket SP: SPDigiMarketQueue \n"+ex.Message);
    }

    return true;
}