Problems in Uploading

In the morning today I check my final piece again to make sure, and have been trying to upload the file since morning. It seems like issuu is seems to have problems for me, for when I try uploading it up, it finishes, and when it converting, it took a very long time, and several hours later it show me a message saying that it fail. So here I am sitting in front of the computer waiting for it to finish, so I would be able to finally sent this piece to my teacher.