Fatal error: Uncaught Error: Call to undefined function twentyseventeen_is_frontpage() in /homepages/9/d13518666/htdocs/meerwasserweb/wp-content/themes/twentyseventeen/template-parts/header/site-branding.php:33 Stack trace: #0 /homepages/9/d13518666/htdocs/meerwasserweb/wp-includes/template.php(785): require() #1 /homepages/9/d13518666/htdocs/meerwasserweb/wp-includes/template.php(718): load_template('/homepages/9/d1...', false, Array) #2 /homepages/9/d13518666/htdocs/meerwasserweb/wp-includes/general-template.php(204): locate_template(Array, true, false, Array) #3 /homepages/9/d13518666/htdocs/meerwasserweb/wp-content/themes/twentyseventeen/template-parts/header/header-image.php(18): get_template_part('template-parts/...', 'branding') #4 /homepages/9/d13518666/htdocs/meerwasserweb/wp-includes/template.php(785): require('/homepages/9/d1...') #5 /homepages/9/d13518666/htdocs/meerwasserweb/wp-includes/template.php(718): load_template('/homepages/9/d1...', false, Array) #6 /homepages/9/d13518666/htdocs/meerwasserweb/wp-includes/general-template.php(204): locate_template(Array, true, false, Array) #7 /homepages/9/d13518666/htdocs/meerwasserweb/wp-content/themes/twentyseventeen/header.php(32): get_template_part('template-parts/...', 'image') #8 /homepages/9/d13518666/htdocs/meerwasserweb/wp-includes/template.php(783): require_once('/homepages/9/d1...') #9 /homepages/9/d13518666/htdocs/meerwasserweb/wp-includes/template.php(718): load_template('/homepages/9/d1...', true, Array) #10 /homepages/9/d13518666/htdocs/meerwasserweb/wp-includes/general-template.php(48): locate_template(Array, true, true, Array) #11 /homepages/9/d13518666/htdocs/meerwasserweb/wp-content/themes/twentyseventeen/front-page.php(15): get_header() #12 /homepages/9/d13518666/htdocs/meerwasserweb/wp-includes/template-loader.php(106): include('/homepages/9/d1...') #13 /homepages/9/d13518666/htdocs/meerwasserweb/wp-blog-header.php(19): require_once('/homepages/9/d1...') #14 /homepages/9/d13518666/htdocs/meerwasserweb/index.php(17): require('/homepages/9/d1...') #15 {main} thrown in /homepages/9/d13518666/htdocs/meerwasserweb/wp-content/themes/twentyseventeen/template-parts/header/site-branding.php on line 33