I am trying to acces ESP an I get this message:

Your connection is not private

Attackers might be trying to steal your information from esp.gettyimages.com (for example, passwords, messages, or credit cards). Learn more
NET::ERR_CERT_AUTHORITY_INVALID

anyone having the same issue ? Should I be worried ?

Not sure. Try a different browser and see if you get the same message. I normally use Firefox and no problem.

I wonder if it also might be related to some security settings you have made in your browser or some antivirus or anti-malware you have running.

Try also logging in from a different computer and see if you get the same error.

"They're working on it"

That happens to me when I'm using an old version of a browser - try updating and it should go away.

Check your computer's time. Sometime I had the same problem and found that my clock was years back!!! Also, try and update Adobe Flash(yes, we are still using this obsolete garbage).

Note my reply above: it was an acknowledged bug.

Yes, It was a bug. I was worried about my computer or account beeing hacked. I use google chrome wich autoupdates itself and my pc has the right time