Fatal error: Uncaught Error: Call to undefined function XTS\Gutenberg\wp_is_serving_rest_request() in /home/httpd/vhosts/keoma.ch/preview.tauron.ch/wp-content/themes/woodmart/inc/integrations/gutenberg/class-gutenberg.php:330 Stack trace: #0 /home/httpd/vhosts/keoma.ch/preview.tauron.ch/wp-includes/class-wp-hook.php(303): XTS\Gutenberg\Gutenberg->pre_render_block(NULL, Array) #1 /home/httpd/vhosts/keoma.ch/preview.tauron.ch/wp-includes/plugin.php(189): WP_Hook->apply_filters(NULL, Array) #2 /home/httpd/vhosts/keoma.ch/preview.tauron.ch/wp-includes/blocks.php(842): apply_filters('pre_render_bloc...', NULL, Array) #3 /home/httpd/vhosts/keoma.ch/preview.tauron.ch/wp-includes/blocks.php(785): render_block(Array) #4 /home/httpd/vhosts/keoma.ch/preview.tauron.ch/wp-includes/formatting.php(3848): excerpt_remove_blocks('\n\t\t\n\t\t\t\t\t\t\t\n\t\t\t...') #5 /home/httpd/vhosts/keoma.ch/preview.tauron.ch/wp-includes/class-wp-hook.php(303): wp_trim_excerpt('\n\t\t\n\t\t\t\t\t\t\t\n\t\t\t...', Object(WP_Post)) #6 /home/httpd/vhosts/keoma.ch/preview.tauron.ch/wp-includes/plugin.php(189): WP_Hook->apply_filters('', Array) #7 /home/httpd/vhosts/keoma.ch/preview.tauron.ch/wp-includes/post-template.php(429): apply_filters('get_the_excerpt', '', Object(WP_Post)) #8 /home/httpd/vhosts/keoma.ch/preview.tauron.ch/wp-content/plugins/wordpress-seo/src/helpers/post-helper.php(72): get_the_excerpt(Object(WP_Post)) #9 /home/httpd/vhosts/keoma.ch/preview.tauron.ch/wp-content/plugins/wordpress-seo/src/presentations/indexable-post-type-presentation.php(196): Yoast\WP\SEO\Helpers\Post_Helper->get_the_excerpt(57) #10 /home/httpd/vhosts/keoma.ch/preview.tauron.ch/wp-content/plugins/wordpress-seo/src/presentations/abstract-presentation.php(64): Yoast\WP\SEO\Presentations\Indexable_Post_Type_Presentation->generate_open_graph_description() #11 /home/httpd/vhosts/keoma.ch/preview.tauron.ch/wp-content/plugins/wordpress-seo/src/presenters/open-graph/description-presenter.php(40): Yoast\WP\SEO\Presentations\Abstract_Presentation->__get('open_graph_desc...') #12 /home/httpd/vhosts/keoma.ch/preview.tauron.ch/wp-content/plugins/wordpress-seo/src/presenters/abstract-indexable-tag-presenter.php(37): Yoast\WP\SEO\Presenters\Open_Graph\Description_Presenter->get() #13 /home/httpd/vhosts/keoma.ch/preview.tauron.ch/wp-content/plugins/wordpress-seo/src/integrations/front-end-integration.php(317): Yoast\WP\SEO\Presenters\Abstract_Indexable_Tag_Presenter->present() #14 /home/httpd/vhosts/keoma.ch/preview.tauron.ch/wp-includes/class-wp-hook.php(303): Yoast\WP\SEO\Integrations\Front_End_Integration->present_head('') #15 /home/httpd/vhosts/keoma.ch/preview.tauron.ch/wp-includes/class-wp-hook.php(327): WP_Hook->apply_filters('', Array) #16 /home/httpd/vhosts/keoma.ch/preview.tauron.ch/wp-includes/plugin.php(470): WP_Hook->do_action(Array) #17 /home/httpd/vhosts/keoma.ch/preview.tauron.ch/wp-content/plugins/wordpress-seo/src/integrations/front-end-integration.php(291): do_action('wpseo_head') #18 /home/httpd/vhosts/keoma.ch/preview.tauron.ch/wp-includes/class-wp-hook.php(303): Yoast\WP\SEO\Integrations\Front_End_Integration->call_wpseo_head('') #19 /home/httpd/vhosts/keoma.ch/preview.tauron.ch/wp-includes/class-wp-hook.php(327): WP_Hook->apply_filters(NULL, Array) #20 /home/httpd/vhosts/keoma.ch/preview.tauron.ch/wp-includes/plugin.php(470): WP_Hook->do_action(Array) #21 /home/httpd/vhosts/keoma.ch/preview.tauron.ch/wp-includes/general-template.php(3015): do_action('wp_head') #22 /home/httpd/vhosts/keoma.ch/preview.tauron.ch/wp-content/themes/woodmart/header.php(12): wp_head() #23 /home/httpd/vhosts/keoma.ch/preview.tauron.ch/wp-includes/template.php(770): require_once('/home/httpd/vho...') #24 /home/httpd/vhosts/keoma.ch/preview.tauron.ch/wp-includes/template.php(716): load_template('/home/httpd/vho...', true, Array) #25 /home/httpd/vhosts/keoma.ch/preview.tauron.ch/wp-includes/general-template.php(48): locate_template(Array, true, true, Array) #26 /home/httpd/vhosts/keoma.ch/preview.tauron.ch/wp-content/themes/woodmart/page.php(15): get_header() #27 /home/httpd/vhosts/keoma.ch/preview.tauron.ch/wp-includes/template-loader.php(113): include('/home/httpd/vho...') #28 /home/httpd/vhosts/keoma.ch/preview.tauron.ch/wp-blog-header.php(19): require_once('/home/httpd/vho...') #29 /home/httpd/vhosts/keoma.ch/preview.tauron.ch/index.php(17): require('/home/httpd/vho...') #30 {main} thrown in /home/httpd/vhosts/keoma.ch/preview.tauron.ch/wp-content/themes/woodmart/inc/integrations/gutenberg/class-gutenberg.php on line 330