Fatal error: Uncaught Error: Class "Yoast\WP\Lib\Model" not found
in /home/camille-marceau/www/wp-content/plugins/wordpress-seo/src/repositories/indexable-repository.php on line 102

Call stack:

1. Yoast\W\S\R\Indexable_Repository::query()
   wp-content/plugins/wordpress-seo/src/repositories/indexable-repository.php:332
2. Yoast\W\S\R\Indexable_Repository::find_by_id_and_type()
   wp-content/plugins/wordpress-seo/src/repositories/indexable-repository.php:117
3. Yoast\W\S\R\Indexable_Repository::for_current_page()
   wp-content/plugins/wordpress-seo/src/memoizers/meta-tags-context-memoizer.php:97
4. Yoast\W\S\M\Meta_Tags_Context_Memoizer::for_current_page()
   wp-content/plugins/wordpress-seo/src/integrations/front-end/wp-robots-integration.php:87
5. Yoast\W\S\I\F\WP_Robots_Integration::get_robots_value()
   wp-content/plugins/wordpress-seo/src/integrations/front-end/wp-robots-integration.php:73
6. Yoast\W\S\I\F\WP_Robots_Integration::add_robots()
   wp-includes/class-wp-hook.php:324
7. WP_Hook::apply_filters()
   wp-includes/plugin.php:205
8. apply_filters()
   wp-includes/robots-template.php:32
9. wp_robots()
   wp-includes/class-wp-hook.php:324
10. WP_Hook::apply_filters()
    wp-includes/class-wp-hook.php:348
11. WP_Hook::do_action()
    wp-includes/plugin.php:517
12. do_action()
    wp-includes/general-template.php:3050
13. wp_head()
    wp-content/themes/periwinkle/header.php:23
14. require_once()
    wp-includes/template.php:810
15. load_template()
    wp-includes/template.php:745
16. locate_template()
    wp-includes/general-template.php:48
17. get_header()
    wp-content/themes/periwinkle/single-dessin.php:11
18. include()
    wp-includes/template-loader.php:106
19. require_once()
    wp-blog-header.php:19
20. require()
    index.php:17