I'm a new addition to Upwork, and I just tried to submit my very first proposal on a job. The problem is that when I try to upload a sample of my work, I get the message that you can see attached to this post. The file that i try to upload is an html file, no larger than 19kb.
It happens in both Chrome and Firefox, and I have no idea if the problem is on my side, or what.
My profile has already been approved, so, I guess, that is one thing that cannot bother me.
Any help would be greatly appreciated 🙂