Thanks - but I have additional problems
First - my 'Apex Dashboard' doesn't look like this screenshot. I get a dropdown menu next to my account icon - and select 'Licenses' (https://theme.co/apex/licenses) where I have entered my themeforest 'Item Purchase Code:'
Then, back on my WP dashboard - When trying to validate, I get the error "Could not establish connection. Please ensure your firewall is not blocking requests to theme.co" NOTE, it asks for an 'API Key'
I am on an old server... I had moved this site to a new server (getting ready to install https, etc) but the move didn't work - I had all sorts of issues with the website (couldn't upload images, update plugins, menu links didnt work, etc).
So, I've re-delegated it back to the old server, the site 'works' - and I've started the process of updating everything before moving it to the new server again
And - as noted, this theme was purchased 2-3 years ago - but I do not have access to the account that made the purchase so I bought it again.