Fatal error: Uncaught Error: Typed property Seo::$title must be string, null used
in /home/c/cu52742/azbuka-dvizheniya.ru/public_html/wp-content/themes/azbuka_v1/kernel/mods/mod.seo/mod.class.php on line 355

Call stack:

1. Seo::extract_meta_fields()
   wp-content/themes/azbuka_v1/kernel/mods/mod.seo/mod.class.php:193
2. Seo::__construct()
   wp-content/themes/azbuka_v1/kernel/mods/mod.seo/mod.class.php:567
3. check_for_redirect()
   wp-includes/class-wp-hook.php:324
4. WP_Hook::apply_filters()
   wp-includes/class-wp-hook.php:348
5. WP_Hook::do_action()
   wp-includes/plugin.php:565
6. do_action_ref_array()
   wp-includes/class-wp.php:590
7. WP::send_headers()
   wp-includes/class-wp.php:821
8. WP::main()
   wp-includes/functions.php:1336
9. wp()
   wp-blog-header.php:16
10. require()
    index.php:17