Fatal error: Uncaught Error: Call to undefined function twentyseventeen_sanitize_colorscheme() in /var/www/wp-content/themes/twentyseven/inc/template-functions.php:62 Stack trace: #0 /var/www/wp-includes/class-wp-hook.php(326): twentyseventeen_body_classes(Array) #1 /var/www/wp-includes/plugin.php(205): WP_Hook->apply_filters(Array, Array) #2 /var/www/wp-includes/post-template.php(859): apply_filters('body_class', Array, Array) #3 /var/www/wp-includes/post-template.php(622): get_body_class(Array) #4 /var/www/wp-content/themes/twentyseven/header.php(25): body_class() #5 /var/www/wp-includes/template.php(810): require_once('/var/www/wp-con...') #6 /var/www/wp-includes/template.php(745): load_template('/var/www/wp-con...', true, Array) #7 /var/www/wp-includes/general-template.php(48): locate_template(Array, true, true, Array) #8 /var/www/wp-content/themes/twentyseven/front-page.php(15): get_header() #9 /var/www/wp-includes/template-loader.php(106): include('/var/www/wp-con...') #10 /var/www/wp-blog-header.php(19): require_once('/var/www/wp-inc...') #11 /var/www/index.php(17): require('/var/www/wp-blo...') #12 {main} thrown in /var/www/wp-content/themes/twentyseven/inc/template-functions.php on line 62