Fatal error: Uncaught Error: Call to undefined function wp_body_open() in /home/deyankanev/public_html/wp-content/themes/twentynineteen/header.php:23 Stack trace: #0 /home/deyankanev/public_html/wp-includes/template.php(704): require_once() #1 /home/deyankanev/public_html/wp-includes/template.php(653): load_template('/home/deyankane...', true) #2 /home/deyankanev/public_html/wp-includes/general-template.php(41): locate_template(Array, true) #3 /home/deyankanev/public_html/wp-content/themes/twentynineteen/single.php(12): get_header() #4 /home/deyankanev/public_html/wp-includes/template-loader.php(77): include('/home/deyankane...') #5 /home/deyankanev/public_html/wp-blog-header.php(19): require_once('/home/deyankane...') #6 /home/deyankanev/public_html/index.php(17): require('/home/deyankane...') #7 {main} thrown in /home/deyankanev/public_html/wp-content/themes/twentynineteen/header.php on line 23