hikashop trigger OnBeforeProductUpdate not triggering

-- HikaShop version -- : 2.6.4
-- Joomla version -- : 3.6.5
-- PHP version -- : 5.6.29

I have a custom plugin tirggered with OnBeforeProductUpdate.

It's been working fine on localhost with MAMP on a Mac with PHP 5.6.27

When using the site online the trigger is not triggering, shooting, firing, say it how you like

We put error_logs and all kind of tricks and we are sure is not triggering.

We get the site back offlinea and it works again.

Tried both in a siteground and a rochenhost shared account.

Any clue on what can be happening?

UPDATE from Rochenhost:

I am able to replicate the issue, but no error is being thrown at all in regard to it. The browser console is not picking anything up, and both LiteSpeed and PHP are not registering anything either. You may need to consult the developer to see if any modules are required to make this work.

Would you be able to post a phpinfo() of your local environment, where this is working?
I can compare it to the server environment to see if anything is missing.

UPDATE from Siteground:

I replicated the issue on my end as well but the server logs do not show anything related. Also, I see you have a few errors on the live website that could be from the same issue. I recommend you contact the developers of this component so hey can provide you with further assistance in this matter.