Fatal error: Uncaught Exception: Property has_article has no generator. Expected function generate_has_article. in /homepages/33/d659620499/htdocs/clickandbuilds/FDPLeonberg/wp-content/plugins/wordpress-seo/src/presentations/abstract-presentation.php:67 Stack trace: #0 /homepages/33/d659620499/htdocs/clickandbuilds/FDPLeonberg/wp-content/plugins/the-events-calendar/src/Events/Integrations/Plugins/WordPress_SEO/Events_Schema.php(101): Yoast\WP\SEO\Presentations\Abstract_Presentation->__get('has_article') #1 /homepages/33/d659620499/htdocs/clickandbuilds/FDPLeonberg/wp-content/plugins/wordpress-seo/src/generators/schema-generator.php(128): TEC\Events\Integrations\Plugins\WordPress_SEO\Events_Schema->generate() #2 /homepages/33/d659620499/htdocs/clickandbuilds/FDPLeonberg/wp-content/plugins/wordpress-seo/src/generators/schema-generator.php(76): Yoast\WP\SEO\Generators\Schema_Generator->generate_graph(Array, Object(Yoast\WP\SEO\Context\Meta_Tags_Context)) #3 /homepages/33/d659620499/htdocs/clickandbuilds/FDPLeonberg/wp-content/plugins/wordpress-seo/src/presentations/indexable-presentation.php(738): Yoast\WP\SEO\Generators\Schema_Generator->generate(Object(Yoast\WP\SEO\Context\Meta_Tags_Context)) #4 /homepages/33/d659620499/htdocs/clickandbuilds/FDPLeonberg/wp-content/plugins/wordpress-seo/src/presentations/abstract-presentation.php(64): Yoast\WP\SEO\Presentations\Indexable_Presentation->generate_schema() #5 /homepages/33/d659620499/htdocs/clickandbuilds/FDPLeonberg/wp-content/plugins/wordpress-seo/src/presenters/schema-presenter.php(60): Yoast\WP\SEO\Presentations\Abstract_Presentation->__get('schema') #6 /homepages/33/d659620499/htdocs/clickandbuilds/FDPLeonberg/wp-content/plugins/wordpress-seo/src/presenters/schema-presenter.php(44): Yoast\WP\SEO\Presenters\Schema_Presenter->get() #7 /homepages/33/d659620499/htdocs/clickandbuilds/FDPLeonberg/wp-content/plugins/wordpress-seo/src/integrations/front-end-integration.php(324): Yoast\WP\SEO\Presenters\Schema_Presenter->present() #8 /homepages/33/d659620499/htdocs/clickandbuilds/FDPLeonberg/wp-includes/class-wp-hook.php(308): Yoast\WP\SEO\Integrations\Front_End_Integration->present_head('') #9 /homepages/33/d659620499/htdocs/clickandbuilds/FDPLeonberg/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters('', Array) #10 /homepages/33/d659620499/htdocs/clickandbuilds/FDPLeonberg/wp-includes/plugin.php(517): WP_Hook->do_action(Array) #11 /homepages/33/d659620499/htdocs/clickandbuilds/FDPLeonberg/wp-content/plugins/wordpress-seo/src/integrations/front-end-integration.php(298): do_action('wpseo_head') #12 /homepages/33/d659620499/htdocs/clickandbuilds/FDPLeonberg/wp-includes/class-wp-hook.php(308): Yoast\WP\SEO\Integrations\Front_End_Integration->call_wpseo_head('') #13 /homepages/33/d659620499/htdocs/clickandbuilds/FDPLeonberg/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters(NULL, Array) #14 /homepages/33/d659620499/htdocs/clickandbuilds/FDPLeonberg/wp-includes/plugin.php(517): WP_Hook->do_action(Array) #15 /homepages/33/d659620499/htdocs/clickandbuilds/FDPLeonberg/wp-includes/general-template.php(3043): do_action('wp_head') #16 /homepages/33/d659620499/htdocs/clickandbuilds/FDPLeonberg/wp-content/plugins/header-footer-elementor/themes/default/hfe-header.php(16): wp_head() #17 /homepages/33/d659620499/htdocs/clickandbuilds/FDPLeonberg/wp-content/plugins/header-footer-elementor/themes/default/class-hfe-default-compat.php(57): require('/homepages/33/d...') #18 /homepages/33/d659620499/htdocs/clickandbuilds/FDPLeonberg/wp-includes/class-wp-hook.php(310): HFE\Themes\HFE_Default_Compat->override_header(NULL) #19 /homepages/33/d659620499/htdocs/clickandbuilds/FDPLeonberg/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters(NULL, Array) #20 /homepages/33/d659620499/htdocs/clickandbuilds/FDPLeonberg/wp-includes/plugin.php(517): WP_Hook->do_action(Array) #21 /homepages/33/d659620499/htdocs/clickandbuilds/FDPLeonberg/wp-includes/general-template.php(38): do_action('get_header', NULL, Array) #22 /homepages/33/d659620499/htdocs/clickandbuilds/FDPLeonberg/wp-content/plugins/the-events-calendar/src/views/v2/default-template.php(17): get_header() #23 /homepages/33/d659620499/htdocs/clickandbuilds/FDPLeonberg/wp-includes/template-loader.php(106): include('/homepages/33/d...') #24 /homepages/33/d659620499/htdocs/clickandbuilds/FDPLeonberg/wp-blog-header.php(19): require_once('/homepages/33/d...') #25 /homepages/33/d659620499/htdocs/clickandbuilds/FDPLeonberg/index.php(17): require('/homepages/33/d...') #26 {main} thrown in /homepages/33/d659620499/htdocs/clickandbuilds/FDPLeonberg/wp-content/plugins/wordpress-seo/src/presentations/abstract-presentation.php on line 67