Fatal error: Uncaught Error: Call to undefined function wp() in /var/www/web27226623/html/wp_2019/wp-blog-header.php:16
Stack trace:
#0 /var/www/web27226623/html/wp_2019/index.php(22): require()
#1 {main}
thrown in /var/www/web27226623/html/wp_2019/wp-blog-header.php on line 16