Fatal error: Uncaught Error: Call to undefined function mb_strtoupper() in /home/gildiasp/domains/gildiaspp.ru/public_html/wp-content/plugins/wordpress-seo/src/generators/schema/article.php:226
Stack trace:
#0 /home/gildiasp/domains/gildiaspp.ru/public_html/wp-content/plugins/wordpress-seo/src/generators/schema/article.php(60): Yoast\WP\SEO\Generators\Schema\Article->word_count('\xD0\x94\xD0\xB5\xD1\x82\xD0\xB8 Z - \xD0\xBD...', '\xD0\x94\xD0\xB5\xD1\x82\xD0\xB8 Z - \xD0\xBD...')
#1 /home/gildiasp/domains/gildiaspp.ru/public_html/wp-content/plugins/wordpress-seo/src/generators/schema-generator.php(128): Yoast\WP\SEO\Generators\Schema\Article->generate()
#2 /home/gildiasp/domains/gildiaspp.ru/public_html/wp-content/plugins/wordpress-seo/src/generators/schema-generator.php(75): Yoast\WP\SEO\Generators\Schema_Generator->generate_graph(Array, Object(Yoast\WP\SEO\Context\Meta_Tags_Context))
#3 /home/gildiasp/domains/gildiaspp.ru/public_html/wp-content/plugins/wordpress-seo/src/presentations/indexable-presentation.php(720): Yoa in /home/gildiasp/domains/gildiaspp.ru/public_html/wp-content/plugins/wordpress-seo/src/generators/schema/article.php on line 226