An unhandled exception of type 'System.StackOverflowException' occurred in System.Data.dll

public static DataTable ExecuteSelectCommand(DbCommand command)
{
    DataTable table;
    // The DataTable to be returned
    
    // Execute the command, making sure the connection gets closed in the
    // end
    try
    {
        // Open the data connection
        command.Connection.Open();
        // Execute the command and save the results in a DataTable
        DbDataReader reader = command.ExecuteReader();
        table = new DataTable();
        table.Load(reader);
        // Close the reader
        reader.Close();
    }
    catch (Exception ex)
    {
        utilities.LogError(ex);
        throw;  
    }
    finally
    {
        // Close the connection
        command.Connection.Close();
    }
    return table;
}