Error #503F

I am getting an error when I am going online publishing a file in Adobe InDesign… from 2 days… and the option is not working.
Can anyone tell me why this is happening!? I have attached a screenshot!

Thanks in advance!

Turn off your firewall to see if it improves. If it does, make an exception in your firewall.

Same thing! :disappointed:

Can you try on a different computer on a different network.
Or share your file/sample file here and I’ll see if I can get it to work.

You can post a link here to the file or send me a PM.

Is it all files or just this one?

It happening with all files…