The theme does not work with PHP 8
Author response
Hello,
The compatibility with PHP 8 was improved in theme updates (please see change log) and our dev team is working on improving it further.
You should know that you can always turn to our support team and you are more than welcome to submit a request at our Help Center and our support team will be happy to help. To submit a ticket please follow instructions from this article - How To Submit A Ticket.
Best,
Edge