Fatal error: Uncaught Error: Call to undefined function wp_get_additional_image_sizes() in /home/customer/www/performancebioscience.com/public_html/wp-includes/media.php:863 Stack trace: #0 /home/customer/www/performancebioscience.com/public_html/wp-content/plugins/wp-user-avatar/includes/wpua-globals.php(105): get_intermediate_image_sizes() #1 /home/customer/www/performancebioscience.com/public_html/wp-content/plugins/wp-user-avatar/wp-user-avatar.php(72): require_once('/home/customer/...') #2 /home/customer/www/performancebioscience.com/public_html/wp-content/plugins/wp-user-avatar/wp-user-avatar.php(28): WP_User_Avatar_Setup->_load_wpua() #3 /home/customer/www/performancebioscience.com/public_html/wp-content/plugins/wp-user-avatar/wp-user-avatar.php(94): WP_User_Avatar_Setup->__construct() #4 /home/customer/www/performancebioscience.com/public_html/wp-settings.php(382): include_once('/home/customer/...') #5 /home/customer/www/performancebioscience.com/public_html/wp-config.php(98): require_once('/home/customer/...') #6 in /home/customer/www/performancebioscience.com/public_html/wp-includes/media.php on line 863