The author made this answer to a user who was desperate not being able to update his theme:
We are back to start updating our themes since ENvato have upgraded its criteria to accept updates the reasons it is time taking and you will see a huge update very soon from now onwards. We are committed to provide free support to the update awaiting clients as well. Thank you > Blockquote
So will Envato be able to push an author to update their theme - in this case, the theme hasn’t been updated since 2016, and now everybody is stuck with PHP 5.6 - so nearly no plug-in updates without crashing ones site. The author is still selling the theme.