Fatal error: Uncaught Error: Call to undefined function wp() in /customers/4/2/e/vttst.be/httpd.www/wp-blog-header.php:16
Stack trace:
#0 /customers/4/2/e/vttst.be/httpd.www/index.php(17): require()
#1 {main}
  thrown in /customers/4/2/e/vttst.be/httpd.www/wp-blog-header.php on line 16