list cursor in ERROR view in ObjectParameter

I have a project in C # ASP.NET and I am consuming an Oracle package in a login which receives three variables UserName , Password , application_id The code that I have is the following one and it receives me the data and everything: only that when it arrives at the printing it throws me error I would appreciate your help.

 protected void AutenticarUsuario()
{
    var output = new System.Data.Objects.ObjectParameter("p_COD_ERROR", typeof(string));
    var output2 = new System.Data.Objects.ObjectParameter("p_MSG_ERROR", typeof(string));
    var auten = conn0.PKG_ETP_GESTION_USUARIO_AUTENTICARUSUARIO(Login1.UserName, Login1.Password, '1', output, output2);
    string auten2 = auten.ToString();}

My PS Oracle code is:

 BEGIN

    SELECT COUNT(A.ID) into contador  FROM APLICACIONES A WHERE A.ID = p_id_aplicacion  AND LOWER(A.ACTIVO) = LOWER('1');

  IF contador > 0 THEN
        SELECT COUNT(U.LOGIN) into contador FROM USUARIOS U WHERE U.LOGIN = p_login AND LOWER(U.ACTIVO) = LOWER('1');
        IF contador > 0 THEN
            SELECT COUNT(U.LOGIN) into contador FROM USUARIOS U WHERE U.LOGIN = p_login AND LOWER(U.ACTIVO) = LOWER('1')
                AND U.PASSWORD = p_password;

            IF contador > 0 THEN
                SELECT COUNT(U.LOGIN) into contador FROM USUARIOS U 
                    INNER JOIN USUARIOSROLES UR ON UR.IDUSUARIOS = U.IDUSUARIOS
                    INNER JOIN ROLES R ON UR.IDROL=R.IDROL
                    INNER JOIN APLICACIONES A on A.id=R.IDAPLICACION
                WHERE U.LOGIN = p_login AND LOWER(U.ACTIVO) = LOWER('1')
                    AND U.PASSWORD = p_password AND A.ID = p_id_aplicacion;     IF contador > 0 THEN
                     OPEN  p_info_usuario_cur FOR
                        SELECT U.login,U.idusuarios ,U.nombre ,U.email,
                            U.activo, U.ultimologin, U.fechacrea, U.fechamodi, U.usuariocrea,
                            U.usuariomodi
                        FROM usuarios U
                        WHERE U.LOGIN = p_login AND LOWER(U.ACTIVO) = LOWER('1')
                        AND U.PASSWORD = p_password;

                    OPEN  p_roles_usuario_cur FOR 
                        SELECT R.IDROL, R.NOMBRE FROM ROLES R
                            INNER JOIN APLICACIONES A on A.id=R.IDAPLICACION
                            INNER JOIN USUARIOSROLES UR ON UR.IDROL=R.IDROL
                            INNER JOIN USUARIOS U ON UR.IDUSUARIOS = U.IDUSUARIOS
                            WHERE U.LOGIN = p_login AND LOWER(U.ACTIVO) = LOWER('1')
                        AND U.PASSWORD = p_password AND A.ID = p_id_aplicacion;

                ELSE
                    p_cod_error := 103;
                    p_msg_error := 'Aplicación o roles no asignados al usuario';
                END IF;
            ELSE
                p_cod_error := 102;
                p_msg_error := 'Credenciales incorrectas';
            END IF;
        ELSE
            p_cod_error := 100;
            p_msg_error := 'Usuario inactivo';
        END IF;
    ELSE
        p_cod_error := 101;
        p_msg_error := 'Aplicación no existe';
    END IF;