unable to generate PDF

[r9guy]

when clicking generate pdf, I receive an error.

Dolibarr has detected a technical error.
This information can be useful for diagnostic purposes (you can set option $dolibarr_main_prod to '1' to remove such notices):
Date: 20210301191736
Dolibarr: 13.0.1 - https://www.dolibarr.org
Level of features: 0
PHP: 7.3.23
Server: Apache
OS: Linux ecbiz224.inmotionhosting.com 3.10.0-962.3.2.lve1.5.31.el7.x86_64 #1 SMP Mon Feb 17 04:30:31 EST 2020 x86_64
UserAgent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:86.0) Gecko/20100101 Firefox/86.0

Requested` URL: /compta/facture/card.php?facid=3
Referer: http://erp.replicant-ia.com/compta/facture/card.php?facid=3
Menu manager: eldy_menu.php

Modules/Applications: user, syslog, api, agenda, commande, ecm, facture, fournisseur, societe, service, variants, mailing, gravatar, oauth, propal, expedition, supplier_proposal, comptabilite, incoterm, banque, tax, product, margin, fckeditor, workflow, import, export, multicurrency
Database type manager: mysqli
Latest database access request error: SELECT p.rowid, p.ref, p.label as label, p.fk_product_type, pa.qty as qty, pa.fk_product_fils as id, pa.incdec FROM llx_product as p, llx_product_association as pa WHERE p.rowid = pa.fk_product_fils AND pa.fk_product_pere = AND pa.fk_product_fils !=
Return code for latest database access request error: DB_ERROR_SYNTAX
Information for latest database access request error: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'AND pa.fk_product_fils !=' at line 1

[eldy]

Which pdf template do you use ?
Did you enabled some external modules ?

[r9guy]

The issue with PDF generation is only in invoice module.
Regardless it's sponge or crabe template.
I have tested from module manager as well as from issued invoice.
No external modules used.
FYI the installation is fresh but upgraded from 12.5⇾13.0.1

[r9guy]

the above commit fixed the issue.