Call to a member function get_page_permastruct() on null in link-template.php

The complete error without strack trace:

Fatal error: Uncaught Error: Call to a member function get_page_permastruct() on null in C:\xampp\htdocs\TwizoAdminTFA\wp-includes\link-template.php:357

The code that causes it:

if(!$this->page_exists_by_slug('twizo-verification')){
            $newPage = array(
                'post_title' => '2FA Settings',
                'post_name' => 'twizo-verification',
                'post_type' => 'page',
                'post_status' => 'publish'
            );

            wp_insert_post($newPage);
        }

public function page_exists_by_slug($page_slug) {
        
        $page = get_page_by_path( $page_slug , OBJECT );
    
        if ( isset($page) )
           return true;
        else
           return false;
    }

I found out that $wp_rewrite is null in link-template.php, but I don’t know why.