Well it clearly doesn't work.
If you look at this screen shot you will notice :
1) Connection interrupted. (No, it isn't. Your programmers are lazy and have interpreted any error from downloading as "connection interrupted". This might be acceptable if the whole point of the application wasn't to download things. Spend more time on that and less on pretty scrolling boxes. Nobody cares what downloaders look like. They want them to work reliably. Or test it. Amateur hour)
2) /tmp has 7.9G used and is 100% full. It's not doing anything else (outside the DE/Xorg/etc). (7.9G is remarkably close to the file size downloaded)
3) /aux/Orbx/tmp has 4.0k used (e.g. it's empty). (There is 745G free on that partition)
4) The temporary directory is set to /aux/Orbx/tmp
What else do we see ? Well, if I look at the /tmp directory, there's a subdirectory called /tmp/Orbx , which obviously belongs to Gnome. And guess what, there's 7.8G in it. And the files or called "gbr-central-xp11.m.c4". Can't think what they might possibly be.
So whatever else your software is doing *THIS DOES NOT WORK PROPERLY*.
It is nothing to do with the manual. It is a bug. It's probably in Windows as well, but most Windows apps just have a temporary file space that can fill up the whole partition, which is usually the whole disk drive.
Your "application" is creating file structures deliberately, and downloads a pile of zip files into /tmp/Orbx/temp/octemp .
Something equally amazing. If you move Orbx out of /tmp to a partition with space and symlink it back again, guess what, it magically works again. And yes, I can do that. Not all Linux users can figure it out. Especially if they think its a connection error.
(And get rid of that stupid pictorial Captcha while you are at it)