Fatal error: Uncaught Error: Undefined class constant 'WEBPAGE_HASH' in /home/customer/www/pelletfiresolutions.co.nz/public_html/wp-content/plugins/wpseo-local/classes/schema/class-organization-list.php:68 Stack trace: #0 /home/customer/www/pelletfiresolutions.co.nz/public_html/wp-content/plugins/wordpress-seo/src/generators/schema-generator.php(128): WPSEO_Local_Organization_List->generate() #1 /home/customer/www/pelletfiresolutions.co.nz/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)) #2 /home/customer/www/pelletfiresolutions.co.nz/public_html/wp-content/plugins/wordpress-seo/src/presentations/indexable-presentation.php(720): Yoast\WP\SEO\Generators\Schema_Generator->generate(Object(Yoast\WP\SEO\Context\Meta_Tags_Context)) #3 /home/customer/www/pelletfiresolutions.co.nz/public_html/wp-content/plugins/wordpress-seo/src/presentations/abstract-presentation.php(66): Yoast\WP\S in /home/customer/www/pelletfiresolutions.co.nz/public_html/wp-content/plugins/wpseo-local/classes/schema/class-organization-list.php on line 68