Fatal error: Uncaught Error: Call to undefined function get_header() in /home/xs376418/itos-testservser.com/public_html/404.php:2
Stack trace:
#0 /home/xs376418/itos-testservser.com/public_html/index.php(17): require()
#1 {main}
thrown in /home/xs376418/itos-testservser.com/public_html/404.php on line 2