запрашивается логином.Ошибка входа.Ошибка входа пользователя

Question

запрошено логином.Ошибка входаОшибка входа для пользователя

public DataAccess()
        {
            ConnectionString = System.Configuration.ConfigurationManager.ConnectionStrings["CafeteriaDB"].ConnectionString;
        }

public bool RegisterUser(string UserName, string UserEmail, string UserPassword)
        {
            UserPassword = SimpleHash.ComputeHash(UserPassword);

            using (SqlConnection connection = new SqlConnection(ConnectionString))
            {
                SqlCommand command = new SqlCommand("Insert into Users (Name, Role, Email, Password) values ('" + UserName + "', 'Salesman', '" + UserEmail + "', '" + UserPassword + "');", connection);
                connection.Open();

                int RowsAffected = command.ExecuteNonQuery();

                if (RowsAffected > 0)
                {
                    return true;
                }
                else return false;
            }
        }

и моего app.config

<connectionStrings>
        <add name="CafeteriaDB"
            connectionString="Data Source=(LocalDB)\MSSQLLocalDB;AttachDbFilename=|DataDirectory|\CafeteriaDB.mdf;Integrated Security=SSPI;"
            providerName="System.Data.SqlClient" />
    </connectionStrings>