ORA-00920 [42000]: invalid relational operator - sql

Question

Here is the SQL Source Code for database selection that generates the following
error: "Query execution failed, Reason: SQL Error [920] [42000]:
ORA-00920: opérateur relationnel non valide.
Please Help!
WITH adr_siege as (
SELECT Nvl(adr.libadr, ' ') AS libadr, Nvl(adr.adress, ' ') AS adress,
Nvl(adr.codpos, ' ') AS codpos, Nvl(adr.locali, ' ') AS locali,
Nvl(adr.codpay, ' ') AS codpay
FROM gnx.tie
JOIN gnx.adr
ON adr.codsoc = tie.codsoc
AND adr.typtie = tie.typtie
AND adr.sigadr = tie.sigtie
AND typadr = 'COM'
WHERE tie.typtie = 'DEP'
AND tie.codsoc=1
AND tie.sigtie = '00000137'
)
SELECT Nvl(a.codpro, ' ') AS codpro, Nvl(a.nompro, ' ') AS nompro,
Nvl(ll.prix_achat, 0) AS prix_achat, Nvl(ll.qte, 0) AS qte,
Nvl(l.nom_fournisseur, ' ') AS nom_fournisseur, Nvl(m.raison, ' ') AS raison,
Nvl(concat(m.adresse1,' ' || m.adresse2), ' ') AS adresse_mag,
Nvl(m.cp, ' ') AS cp, Nvl(m.ville, ' ') AS ville,
Nvl(p.libelle, ' ') AS libelle,
Nvl(To_Char(c.date_validation, 'DD/MM/YYYY'), ' ') AS date_validation,
Nvl((
SELECT sum(fll.prix_achat * fll.qte)
FROM fourniture.frnt_livraison_ligne fll
WHERE fll.noliv
), 0) AS total_prix,
To_Char(SYSDATE, 'DD/MM/YYYY') AS date_edition,
Nvl(f.libadr, ' ') AS fou_lib_adr,
Nvl(f.tel, ' ') AS fou_tel,
Nvl(f.adress, ' ') AS fou_adr, Nvl(f.codpos, ' ') AS fou_cp,
Nvl(f.locali, ' ') AS fou_ville, Nvl(pf.libelle, ' ') AS fou_pays,
Nvl(to_char(p.date_livraison_s1, 'DD/MM/YYYY'), ' ') AS date_livraison_s1,
Nvl(to_char(p.date_livraison_s2, 'DD/MM/YYYY'), ' ') AS date_livraison_s2,
Nvl((
SELECT tbl.lib1
FROM gnx.tie
LEFT JOIN gnx.tbl
ON tbl.codtbl = 'mrg'
AND tbl.lib1 IS NOT NULL
AND tbl.codsoc=1
AND tbl.cletbl = tie.modrgl
WHERE tie.typtie = 'FOU'
AND tie.sigtie = l.code_fournisseur
AND tie.codsoc =1
), ' ') AS mode_paiement,
l.num_sous_periode,
adr_siege.*,
Nvl(m.nummag, ' ') AS nummag,
Nvl(m.tel1, ' ') AS tel1,
l.ref_gnx,
Nvl(tva.taux_tva, 0)/100 AS taux_tva,
Nvl(f.code, ' ') AS code_fournisseur,
(
CASE WHEN (m.lundi_ouverture != '0' OR m.mardi_ouverture != '0' OR m.mercredi_ouverture != '0'
OR m.jeudi_ouverture != '0' OR m.vendredi_ouverture != '0' OR m.samedi_ouverture != '0') THEN 1
ELSE 0
END
) AS AFFICH_HORRAIRE,
a.conditionnement,
a.refpro as REFPRO
FROM adr_siege, fourniture.frnt_livraison l
INNER JOIN fourniture.frnt_livraison_ligne ll ON ll.noliv = l.noliv
INNER JOIN fourniture.frnt_article a ON a.codpro = ll.codpro
INNER JOIN fourniture.frnt_commande c ON c.nocde = l.nocde
INNER JOIN polymag.magasin m ON m.nummag = c.nummag
INNER JOIN polymag.pays p ON p.code = m.codepays
LEFT JOIN fourniture.frnt_fournisseur f ON f.code =l.code_fournisseur
INNER JOIN polymag.pays pf ON pf.code = f.codpay
INNER JOIN fourniture.frnt_periode p ON p.noperiode = c.noperiode
LEFT JOIN fourniture.frnt_tva tva ON tva.code_pays_fou = f.codpay AND tva.code_pays_mag = m.codepays
WHERE l.type_livraison = 'FOU'
(we are selecting in schema named 'fournisseur')
Thank you in advance for your help.

Answer 1

problem is at line 25 because of WHERE fll.noliv that's without any relational operator like <,>,!,= after this statement.

Answer 2

TOTAL_PRIX seems to be invalid; look at its WHERE clause:
(
SELECT SUM(fll.prix_achat * fll.qte)
FROM fourniture.frnt_livraison_ligne fll
WHERE fll.noliv ), 0) AS total_prix,