Fatal error: Uncaught Error: Call to undefined function is_page() in /home/FeRRKNG/public_html/szkolazs1mm/wordpress/wp-content/themes/twentynineteen/template-parts/header/entry-header.php:10
Stack trace:
#0 {main}
thrown in /home/FeRRKNG/public_html/szkolazs1mm/wordpress/wp-content/themes/twentynineteen/template-parts/header/entry-header.php on line 10