Sort comments by like?

The feature you are asking is only available on the pro version.

I see, so after getting the pro version, do I need to modify the code to achieve this or this is an option in the admin area? How do I use this feature in the pro version?

You don’t have to change anything. When you update from free to PRO version this option will be in the edit form page.

If you want to sort by likes you will need the pro version https://codecanyon.net/item/wp-advanced-comment-pro-/14557575