Fatal error: Uncaught Error: Call to undefined function wp_convert_hr_to_bytes() in /home/designca/public_html/wp-includes/default-constants.php:38
Stack trace:
#0 /home/designca/public_html/wp-settings.php(49): wp_initial_constants()
#1 /home/designca/public_html/wp-config.php(92): require_once('/home/designca/...')
#2 /home/designca/public_html/wp-load.php(37): require_once('/home/designca/...')
#3 /home/designca/public_html/xmlrpc.php(30): include('/home/designca/...')
#4 {main}
thrown in /home/designca/public_html/wp-includes/default-constants.php on line 38