Post slug cannot be edited after add add_rewrite_rule

Because I wanted to add a blog reference to the slug of each post, I add a add_rewrite_rule. But now the slug can not be edited on the dashboard. How can I make the slug editable? my dashbord: enter image description here

my code:

 // Add /blog/ to all blog pages. class BlogPage{      const SLUG_BLOG = 'blog';      public static function init() {         self::wpa_fix_blog_pagination();     }      public static function wpa_fix_blog_pagination(){          // Fix pagination         add_rewrite_rule(             'blog/page/([0-9]+)/?$  ',             'index.php?pagename=blog&paged=$  matches[1]',             'top'         );           // Change the default 'post' and add /blog/ to permalink.         add_rewrite_rule(             self::SLUG_BLOG.'/([^/]*)$  ',             'index.php?name=$  matches[1]',             'top'         );         add_rewrite_tag('%'.self::SLUG_BLOG.'%','([^/]*)');            // Change the default permalink structure of tags and categories         global $  wp_rewrite;         $  wp_rewrite->extra_permastructs['category']['struct'] = '/' . self::SLUG_BLOG .'/category/%category%';         $  wp_rewrite->extra_permastructs['post_tag']['struct'] = '/' . self::SLUG_BLOG .'/tag/%post_tag%';          // Change the default permalink structure of authors         $  wp_rewrite->author_base = 'blog/author';         $  wp_rewrite->author_structure = '/' . $  wp_rewrite->author_base . '/%author%';         add_rewrite_rule(self::SLUG_BLOG .'/author/([^/]+)/?$  ', 'index.php?author_name=$  matches[1]', 'top');           add_filter( 'post_link', array(__CLASS__,'change_post_link'), 10, 3 );     }       public static function change_post_link($  url, $  post, $  leavename){         if ( $  post->post_type == 'post' ) {             $  url = home_url( user_trailingslashit( self::SLUG_BLOG . '/' . $  post->post_name ) );         }         return $  url;     }  } // Init Blog Class add_action("init",function(){     BlogPage::init(); });   function fix_guid( $  guid ) {     $  guid = get_permalink( get_the_ID() );     return $  guid; } add_filter( 'get_the_guid', 'fix_guid' );  // redirect_posts_to_newblogurl if the post not starts with /blog/ add_action('template_redirect', function() {     $  lang = $  _COOKIE["wp-wpml_current_language"];      if (is_singular('post') && $  lang == 'en') {         if (substr( $  _SERVER['REQUEST_URI'], 0, 6 ) !== "/blog/") {             wp_redirect( get_the_permalink(), 301 );             exit;         }      } });