[Resolved] Translation of content created using a site builder

Hello Andrey,
I'm aware the info I provided is very limited. This is a bespoke site created by an agency.

What I found out is that it's probably built on top of Advanced Custom Fields. I see a lot of plugins that seem related:
- Advanced Custom Fields PRO
- Advanced Custom Fields: Extended
- Advanced Custom Fields: Image Hotspots Field

I belive the only was to manage the translations is to copy the content - and I'm ok with that. It's sufficient for me if WPML handles urls, menus and redirects

There is a list of over 1400 custom field. I added all that start with builder to "translate". I'm now able to create a copy of the content somehow via WPML. I'm even able to translate it manually, by editing the page. However if i even accidentally >>open<< it in Translation Editor the page breaks.

In the screenshots I attached a screenshot for the database of custom fields that refer to a single page.

Maybe the solution is to allow editing of fields that follow the pattern below in the editor:

SELECT *
FROM `wp_postmeta`
WHERE `post_id` = 7502
AND `meta_key` NOT LIKE '\_%%'
AND `meta_key` REGEXP '_title$|_subtitle$|_suffix$|_price$|_text$'
ORDER BY `post_id` DESC;

Edit valus of meta_key that end with "_title", "_subtitle", "_suffix", "_prices", "_text" and don't start with "_".