Fatal error: Uncaught Error: Call to undefined function cache_users() in /home/poliserv/public_html/wp-includes/class-wp-user-query.php:843 Stack trace: #0 /home/poliserv/public_html/wp-includes/class-wp-user-query.php(79): WP_User_Query->query() #1 /home/poliserv/public_html/wp-includes/user.php(763): WP_User_Query->__construct(Array) #2 /home/poliserv/public_html/wp-content/plugins/stm-post-type/stm-post-type.php(260): get_users(Array) #3 /home/poliserv/public_html/wp-settings.php(447): include_once('/home/poliserv/...') #4 /home/poliserv/public_html/wp-config.php(78): require_once('/home/poliserv/...') #5 /home/poliserv/public_html/wp-load.php(50): require_once('/home/poliserv/...') #6 /home/poliserv/public_html/wp-blog-header.php(13): require_once('/home/poliserv/...') #7 /home/poliserv/public_html/index.php(17): require('/home/poliserv/...') #8 {main} thrown in /home/poliserv/public_html/wp-includes/class-wp-user-query.php on line 843