16GB file upload stuck at 90%.

I am having trouble with uploading a 16GB file. It is a RAR file that contains a backup of files. It's been taking over a day now, should've been done long ago. It got stuck on 87%, then it continued until 90%, that is where it is now. I have tryed everything, from restarting the computer, to restarting Wuala, to fiddling with the start and stop buttons.

Why is Wuala not transferring any data, it sits there and functions except it doesn't upload the file. I thought everything gets uploaded to Wuala servers before being passed down to users' computers. I feel as if somebody I was connected to just turned off their computer and I have to wait until they turn it back on.

Please tell me this can and will be fixed so it continues, I do not want to start over. I want it to finish uploading and the file functions.