Fatal error: Uncaught Error: Call to undefined function wp_is_block_theme() in /homepages/16/d580800871/htdocs/clickandbuilds/Immobilienpreisberechnen/wp-content/plugins/schema-and-structured-data-for-wp/admin_section/common-function.php:5466
Stack trace:
#0 /homepages/16/d580800871/htdocs/clickandbuilds/Immobilienpreisberechnen/wp-content/plugins/schema-and-structured-data-for-wp/modules/reviews/class-saswp-review-feature-frontend.php(54): saswp_is_block_theme()
#1 /homepages/16/d580800871/htdocs/clickandbuilds/Immobilienpreisberechnen/wp-content/plugins/schema-and-structured-data-for-wp/modules/reviews/class-saswp-review-feature-frontend.php(1756): SASWP_Review_Feature_Frontend->__construct()
#2 /homepages/16/d580800871/htdocs/clickandbuilds/Immobilienpreisberechnen/wp-content/plugins/schema-and-structured-data-for-wp/structured-data-for-wp.php(109): require_once('/homepages/16/d...')
#3 /homepages/16/d580800871/htdocs/clickandbuilds/Immobilienpreisberechnen/wp-settings.php(409): include_once('/homepages/16/d...')
#4 /h in /homepages/16/d580800871/htdocs/clickandbuilds/Immobilienpreisberechnen/wp-content/plugins/schema-and-structured-data-for-wp/admin_section/common-function.php on line 5466