Got notification to update this certificate - there was a link to Sectigo.com where I found an attachment with that name - when I clicked it I got a box where it said to install it. Clicked the box and it was saved somewhere on my computer.
Now I dont know if that's it or I need to take further actions - please help :-)
Have no experience with this - my collegue who did this has stopped.
Hoping for a simple answer :-)
P