Userscripts.org

@lern2swim: Do you use other Greasemonkey scripts?
@Bgmin0t: What are you talking about? As you can see here I haven't updated the script since 30 December, and I don't have the ability to upload "silent updates" even if I wanted.

I don't have to explain anything. Line 2150 of the 30 December version have the onload property since I uploaded it in 30 December. Of course the script wouldn't work without it, an error I would have detected in the tests I do before uploading new versions. Many more people would have complained. It's a local problem on your end (bad download, an antivirus with a false positive signature, proxy server, Proxomitron, etc...).

Line 2177 isn't an orphan ), it's an }); that closes the instruction in line 2172, as you can see observing the indentation.

And I can't change the script without generating a new version in the versions page, as you must know as a script author.

Can you temporarily disable them to be sure? If that doesn't work, reinstall the script (maybe there was some kind of temporary problem with the script you downloaded from the userscripts.org server, because you and Bgmin0t get errors in lines which shouldn't be problematic).