Can you attach the log anyway?
What problem are you having with FileZilla on that machine?
I have recently installed a couple of instances of the winscp with no problems. Came across a user who had been using FileZilla, which had stopped working so I installed winscp. However when you launch the app I get an error message to state
" Could not retrieve the directory listing /
Network connection aborted by local system.
The other systems that work fine are no different to the one having problems. No changes were made prior to the system not working. I've switched on the logging which did not show much more than the errors I was already getting. I've done an uninstall and fresh install too