Cannot delete problematic folder

flamesong wrote:
...You don't think it has anything to with the é (e with an acute accent...

It could be related to the é, but I am thinking it is unlikely, since you are unable to delete it using two different access methods (mac and the browser). Plus, I tried it on my duo (using Windows), and I was able to delete a folder with that character in the name. My first thought would be that it was related to permissions, but you've already tried resetting those on the advanced option page.

flamesong wrote:
I have two drives in it, is that what you meant by a backup?

I meant a backup to a different device. RAID is not backup.

The volume check would try to correct any errors it finds in the file system. Usually that is safe, but there is some risk you'd lose other files (depending on what it finds). If it were to delete something, RAID would not help you get it back - because the duo would delete it on the mirrored drive too.

If it were my system, I'd try the volume check (option on system restart), though I would at least make sure I had a copy of the critical files somewhere else first.

I'd also go in with ssh, but I wouldn't recommend that for you unless you are comfortable with linux command line stuff. I was assuming you aren't, which is why I thought you might try an on-line support request.