Rename your file before uploading, you have probably a filename included some character disallowed like _#- or an extension unreadable by the host, it happen to me beforeYou see, there are some hosts that delete your files AND terminate your account and leave whatever they owe you.
Anyways, Remote upload seems to be broken. When I enter a link and request for it to upload, it creates a 3.7KB file. I clicked on details and it says its processing however, after an hour it still hasn't been uploaded.