I'm hoping someone could help me out. I was doing the online application (DS-160), however, the session timed out. I wasn't able to copy the application number nor save the application in time. The error message doesn't display the application ID as well, see below. Would it be fine if I make another application? I was around Part 2 or 3 of the security questions in the last part of the application.
As per the comment from the OP, the system will notify you that your old one wasn't saved, so it's safe to make a new application through the system, saving as you proceed this time.