Recently active problems in Wuala tagged with thumbnail

"Set thumbnail failed. The error message it provided is: Element deleted, [24370, 10901, 54]"

when I want to change a thumbnail on a video.

http://wua.la/jcmag/Images/Public/Scr...

I have a folder with some old games. The folder size is about 300 MB and it has ~3000 files. I am trying to upload it but Wuala always crashes.

I drag the folder into Wuala, it starts encoding the files, then it asks me if I want to resize an image (I say 'No' and 'Remember for now'), it continues to encode the files but after a few seconds it crashes.

When I reopen Wuala I get this window that keeps poping up (http://wua.la/nmat/Documents/wuala/Cr...), so I have to 'force quit' it. Again, I try to open Wuala and I get this popup (http://wua.la/nmat/Documents/wuala/Cr...), I click OK and everything is fine.

I sent you a crash report on this. I am using Mac OS X Tiger.