Lebostein: Why I can only download v 1.31 from gog? Where did you get the 1.32 from?
I believe 1.32 was never published as a stand-alone offline installer. It was only a patch to upgrade from 1.31, the latest full offline installer that was made available.
The only change for 1.32 was adding Chinese language, though. So while I think the patch should be available for download again, if you play 1.31 in another language you aren't missing any gameplay content or bugfixes.