‘revoke’ as in ‘unassign’ (sorry but didn’t realise that’s the same) and then go back to dashboard and start validation process afresh (i.e. typing in the envato purchase code, click ‘validate’ – yippiieeh, it worked. thanks.
now i was also able to update cornerstone and, yes , it looks as if it was working fine. I have only tested if I can delete elements on the pages again, at least this works again, phew!
thanks !