Ошибка "cannot convert from 'object' to 'System.DateTime'" - C#

public List<string> Select(string query)
        {
            List<string> result = new List<string>();
 
            if (!this.Connect())
                return result; // empty list
 
            using (SQLiteCommand command = connection.CreateCommand())
            {
                command.CommandText = query;
                command.CommandType = System.Data.CommandType.Text;
                SQLiteDataReader reader = command.ExecuteReader();
                while (reader.Read())
                {
                    result.Add(SQLiteConvert.ToString(reader["DOMAIN"])); // ERROR
                }
            }
 
            return result;
        }