Fatal error: Uncaught ArgumentCountError: Too few arguments to function add_category_to_single(), 1 passed in /home/aknaptk1/public_html/streetfoodmagazin.hu/wp-includes/class-wp-hook.php on line 300 and exactly 2 expected in /home/aknaptk1/public_html/streetfoodmagazin.hu/wp-content/themes/newsmag-child/functions.php:4 Stack trace: #0 /home/aknaptk1/public_html/streetfoodmagazin.hu/wp-includes/class-wp-hook.php(300): add_category_to_single(Array) #1 /home/aknaptk1/public_html/streetfoodmagazin.hu/wp-includes/plugin.php(203): WP_Hook->apply_filters(Array, Array) #2 /home/aknaptk1/public_html/streetfoodmagazin.hu/wp-includes/post-template.php(754): apply_filters('body_class', Array, Array) #3 /home/aknaptk1/public_html/streetfoodmagazin.hu/wp-includes/post-template.php(541): get_body_class(Array) #4 /home/aknaptk1/public_html/streetfoodmagazin.hu/wp-content/themes/newsmag-child/header.php(24): body_class() #5 /home/aknaptk1/public_html/streetfoodmagazin.hu/wp-includes/template.php(684): require_once('/home/aknaptk1/...') # in /home/aknaptk1/public_html/streetfoodmagazin.hu/wp-content/themes/newsmag-child/functions.php on line 4