Since I moved the website to another server I'm getting this error on the frontend where that categories are:
Warning: preg_match() expects parameter 2 to be string, object given in /public/sites/www.siteurl.nl/wp-includes/formatting.php on line 1529
Warning: strip_tags() expects parameter 1 to be string, object given in /public/sites/www.siteurl.nl/wp-includes/formatting.php on line 1981
Code on line 1529:
if ( !preg_match('/[\x80-\xff]/', $string) )
Code on line 1981:
$title = strip_tags($title);
What is this error and how can this be solved?
Update:
This is the frontend:
It's showing categories from the jobs that are on the site. Which I can select on the backend side:
Regards, Robert