Fatal error: Uncaught Error: Call to undefined function _is_utf8_charset() in /usr/home/wh-ax7ispcjxtar1z03asf/htdocs/wp-includes/functions.php:7569
Stack trace:
#0 /usr/home/wh-ax7ispcjxtar1z03asf/htdocs/wp-includes/functions.php(7585): is_utf8_charset('UTF-8')
#1 /usr/home/wh-ax7ispcjxtar1z03asf/htdocs/wp-includes/class-wp-hook.php(310): _canonical_charset('UTF-8')
#2 /usr/home/wh-ax7ispcjxtar1z03asf/htdocs/wp-includes/plugin.php(205): WP_Hook->apply_filters('UTF-8', Array)
#3 /usr/home/wh-ax7ispcjxtar1z03asf/htdocs/wp-includes/option.php(253): apply_filters('option_blog_cha...', 'UTF-8', 'blog_charset')
#4 /usr/home/wh-ax7ispcjxtar1z03asf/htdocs/wp-includes/load.php(1104): get_option('blog_charset')
#5 /usr/home/wh-ax7ispcjxtar1z03asf/htdocs/wp-settings.php(472): wp_set_internal_encoding()
#6 /usr/home/wh-ax7ispcjxtar1z03asf/htdocs/wp-config.php(96): require_once('/usr/home/wh-ax...')
#7 /usr/home/wh-ax7ispcjxtar1z03asf/htdocs/wp-load.php(50): require_once('/usr/home/wh-ax...')
#8 /usr/home/wh-ax7ispcjxtar1z03asf/htdoc in /usr/home/wh-ax7ispcjxtar1z03asf/htdocs/wp-includes/functions.php on line 7569