Halsfalten: Das kannst du dagegen tun

Fatal error: Uncaught ValueError: Unknown format specifier "," in /usr/www/users/parfums/meinduft-wordpress/wp-content/themes/Extra/includes/template-tags.php:223 Stack trace: #0 /usr/www/users/parfums/meinduft-wordpress/wp-content/themes/Extra/includes/template-tags.php(223): sprintf() #1 /usr/www/users/parfums/meinduft-wordpress/wp-content/themes/Extra/includes/template-tags.php(1572): extra_get_post_rating_stars() #2 /usr/www/users/parfums/meinduft-wordpress/wp-content/themes/Extra/includes/template-tags.php(1530): et_extra_display_post_meta() #3 /usr/www/users/parfums/meinduft-wordpress/wp-content/themes/Extra/single-post.php(36): extra_display_single_post_meta() #4 /usr/www/users/parfums/meinduft-wordpress/wp-includes/template-loader.php(106): include('/usr/www/users/...') #5 /usr/www/users/parfums/meinduft-wordpress/wp-blog-header.php(19): require_once('/usr/www/users/...') #6 /usr/www/users/parfums/meinduft-wordpress/index.php(17): require('/usr/www/users/...') #7 {main} thrown in /usr/www/users/parfums/meinduft-wordpress/wp-content/themes/Extra/includes/template-tags.php on line 223