May be a sign of things to come :/

This should be fixed now. I was aware of the issue, but didn't have the time to code a fix until now.

Perfect, thank you very much once again Yepoleb.

I think you can check how many parts a game has(and size also) in Details - > the Galaxy API link

You're right, thanks for mentioning that. But that just makes it extra curious that GOG Db was seemingly changed to no longer show that info. (Also, the API pages are both uglier [harder to read] and less convenient to use than GOG Db.)

With installers getting bigger then file list got really long, consider a 10 part installer for 8 different languages, that's 80 entries of mostly redundant information. Since the number of parts is relevant, I will consider adding that number again. Sorry for hiding it, I was not aware it would be useful to someone.

Have you thought about making sections like that collapsible? Or would that be too much of a pain? (I haven't seen anything that...uh, "dynamic" on the site, so I'm guessing you avoid that kind of thing for the sake of simplicity/maintainability, which would be understandable. EDIT: Actually, I guess the different tabs on the product pages sort of count?) Failing that, just being able to click through to another (simple, readable) page with the same info would be fine.
(Semi-relatedly, on the master changelog list, the ability to combine and collapse certain categories of entries -- and/or to filter ones out -- would also help A LOT. But, again, I have no idea how feasible such things would be for you.)

I guess people want to be able to confirm whether an installer is one file or split, just in case there are more hiccups like that one, or if GOG actually changes things.
What would be useful to list (again) per file would be the checksums... Since GOG obviously still won't.

I thought about adding a simple "Parts" column, how's that? Screenshot attached. Maybe with a tooltip showing the sizes, if that's necessary.

For the installers or the files inside builds? I think to get download checksums you need to own the game, am I wrong about that? For the game files I just couldn't find a way to display it well and there's also the issue of inconsistent MD5 and SHA256 usage for the same repository.

For the installers, to verify integrity after downloading. And that sucks.
Looks good to me.

Is there a way to search for games with a specific Language Audio (voiceover/dubbing)?

Does gogdb.org do any web scraping, or is it purely GOG API?

That would be better than nothing, yeah. :)
(Sorry I didn't reply sooner -- I just now saw your reply, since I got no notification; presumably you manually edited in the quote of my post -- which does not give the "replyee" a notification -- rather than hitting the reply button on one of my posts.)

Does www.gogdb.org do any web scraping that could target the Language Audio field specifically, or is the GOGDB website only capable of GOG API calls?