Internal server error ONLY on portfolio !

I did it already i just kept
Redux Framework
Woodmart Core
wpbakery

and same error 500 like here https://arg.baliboa.com/portfolio/test/

when i desactivate redux framework or wpbakery it’s ok

See private content you can access admin, if you want to try let me know i’m now working on it

I did it, I already test WITHOUT ALL external plugins before sending the first request

As i said i already test ONLY WITH
Redux Framework
Woodmart Core
wpbakery

And i just retest with only 3 core plugins and same 500 error

OK
All plugins are now disable

Only
Redux Framework
Woodmart Core
wpbakery (when disable it work but really needed)
Are on

I’m no more working for today on this site you can access wp admin, check, test (disable/able… create portfolio test…). I just made a backup in case. Please find the bug/solution

Please see in private message for ftp and error log

I enabled php error display with
ini_set(‘display_errors’,1);
in wp-config.php
and
define(‘WP_DEBUG’, true);

Also i set my php 7.2 in developpment mode (view image)
and in .ovhconfig file on server :
app.engine=php
app.engine.version=7.2
http.firewall=none
environment=development

Should i test different php config ?
7 ?
7.3 ?
phpcgi ?
(view image)

What is next step ?
I desactivate all plugins, get the error log, put php in dev mode…

I need a solution to keep on working and using your theme
You give no direction/idea, try what you want i may missconfigured the wp-config file or… You are the dev professional i’m just a webdesigner and i need your help i pay for that, please some efficient help