Fatal error: Uncaught Error: Call to undefined function is_user_logged_in() in /var/www/vhosts/thirsty-torvalds.45-129-181-175.plesk.page/httpdocs/wp-content/mu-plugins/disable-wc-fragments.php:2 Stack trace: #0 /var/www/vhosts/thirsty-torvalds.45-129-181-175.plesk.page/httpdocs/wp-settings.php(456): include_once() #1 /var/www/vhosts/thirsty-torvalds.45-129-181-175.plesk.page/httpdocs/wp-config.php(112): require_once('...') #2 /var/www/vhosts/thirsty-torvalds.45-129-181-175.plesk.page/httpdocs/wp-load.php(50): require_once('...') #3 /var/www/vhosts/thirsty-torvalds.45-129-181-175.plesk.page/httpdocs/wp-blog-header.php(13): require_once('...') #4 /var/www/vhosts/thirsty-torvalds.45-129-181-175.plesk.page/httpdocs/index.php(17): require('...') #5 {main} thrown in /var/www/vhosts/thirsty-torvalds.45-129-181-175.plesk.page/httpdocs/wp-content/mu-plugins/disable-wc-fragments.php on line 2