In WordPress, the author page link will follow this instruction:

https://website.com/ + author + yourusername

For example https://wilcity.com/author/admin

Sometimes, you want to rename author to another word. Let’s an instance, I want to replace author with thelister, How can I do that?

1. Log into your site account
2. Activate Wilcity Child
3. Put the following code to functions.php of Child Theme: Appearance -> Editor -> functions.php
   

   add_action('init', function(){
   	global $wp_rewrite;
   	$author_slug = 'thelister'; // change slug name
   	$wp_rewrite->author_base = $author_slug;
   });
   
   add_action('init', function(){
   	add_rewrite_rule('^thelister/([^/]+)/([^/]+)/?$', 'index.php?author_name=$matches[1]&mode=$matches[2]', 'top');
   }, 10, 0);
   
   add_filter('wilcity/filter_author_mode', function(){
   	return 'thelister';
   });
   

4. Finally, click on Settings -> Permalinks -> Re-save Post Name. Now https://wilcity.com/author/admin will be changed to https://wilcity.com/thelister/admin