Suddenly an error code appears

[rizziweb]

Hello,
I need help. Suddenly a few pages of an error code appear.

Taekwon-Do - Kampfkunstschule Angela Stadler München Ost

Warning: A non-numeric value encountered in /homepages/0/d13379866/htdocs/website/wp-includes/formatting.php on line 3774
Warning: A non-numeric value encountered in /homepages/0/d13379866/htdocs/website/wp-includes/formatting.php on line 3774

What can I do?

Thanks and best regards Thomas

[lely]

Hi Thomas,

To hide those warnings and for more information about it please check this article.

Hope this helps.