Fatal error: Uncaught Error: Call to undefined function wp_convert_hr_to_bytes() in /var/www/html/wp-includes/default-constants.php:33 Stack trace: #0 /var/www/html/wp-settings.php(42): wp_initial_constants() #1 /var/www/html/wp-config.php(181): require_once('/var/www/html/w...') #2 /var/www/html/wp-load.php(37): require_once('/var/www/html/w...') #3 /var/www/html/wp-blog-header.php(12): require_once('/var/www/html/w...') #4 /var/www/html/index.php(17): require('/var/www/html/w...') #5 {main} thrown in /var/www/html/wp-includes/default-constants.php on line 33