It looks like your hosting is not set up right for that domain. From what little I can tell. you may have deleted your domain folder by mistake. Please go to:
And remove and re add hosting.
Wait about 5 minutes for this to complete.
WARNING: This will delete all files on that domain. But, because you are uploading a new site, it should not matter anyway right?
Then, try uploading again. Do not drag the website folder. Rather, select and drag all of the files inside the website folder to upload them.
Let me know if that works. If not, we can do more troubleshooting. I should be able to reply right away, I have subscribed to this thread.