I can't download the game (Deluxe Edition, bought before there was a Deluxe Addon/DLC).

I tried downloading with GOG Galaxy, but it says that I'm not authorized to download.
Tried downloading the installer file with Galaxy, but same error.
Tried downloading the installer with GOG Downloader, but the page with Dowloader links is 404 (https://www.gog.com/downloader/listing/absolver_game)
Tried downloading the installer directly from the library: There are no files because I do not own the base game...


Edit:
If anybody is interested in what it looks like:
Galaxy looks like this
Website Library looks like this

It's resolved, now

Glad it's fixed! How'd you get it to download?

I contacted supported, they told me to refresh my account. The download files were shown in my library afterwards, but I had to relog into Galaxy to download it there, too. Also, I had to contact support again because my preorder DLC was missing.

Well I'm glad you got it sorted. The soundtrack is worth the extra money alone, imho.