For some reason, I am unable to upload files that I have used before. This is part of a class I teach. The AIA files have been used for the last two years with no problems, but now I and my students cannot upload them. What is weird is that it uploaded one correctly last week, but none of the others. The only difference in the files is the ones that will not work have media files in the project. I tried the first one that worked again just now and it uploaded without any error.
Oddly, I had my students attempt to do the PaintPot tutorial. When they went to upload the image of the cat, it also gave them the same Server Error. This makes me wonder if there is something going on with uploading media to the App Inventor site, or if it is something on our end.