Event in grün

Fatal error: Uncaught Error: Object of class WP_Error could not be converted to string
in /homepages/13/d374782948/htdocs/app588491750/wp-content/themes/weblizar_premium-last/weblizar_premium/functions.php on line 150

Call stack:

1. weblizar_breadcrumbs()
   wp-content/themes/weblizar_premium-last/weblizar_premium/index-banner.php:25
2. require('/homepages/13/d37478...ium/index-banner.php')
   wp-includes/template.php:812
3. load_template()
   wp-includes/template.php:745
4. locate_template()
   wp-includes/general-template.php:206
5. get_template_part()
   wp-content/themes/weblizar_premium-last/weblizar_premium/single.php:2
6. include('/homepages/13/d37478...r_premium/single.php')
   wp-includes/template-loader.php:106
7. require_once('/homepages/13/d37478.../template-loader.php')
   wp-blog-header.php:19
8. require('/homepages/13/d37478...0/wp-blog-header.php')
   index.php:17