failed to determine binary type: 193
I first suspected a problem with Java, but it was something with Mod Organizer itself. I ended up simply re-installing it, overwriting all files in the existing location. That fixed the error, and it even kept my config, modules and load order intact. If you try the same, create a backup first.
Even though I did not look into the root cause after I got it to work, I hope this helps anybody else.