Fatal error: Uncaught Error: Call to undefined function trailingslashit() in /html/wp-includes/class-wp-textdomain-registry.php:103 Stack trace: #0 /html/wp-includes/l10n.php(784): WP_Textdomain_Registry->set('default', 'sv_SE', '/html/wp-conten...') #1 /html/wp-includes/load.php(1401): load_textdomain('default', '/html/wp-conten...', 'sv_SE') #2 /html/wp-includes/load.php(278): wp_load_translations_early() #3 /html/wp-settings.php(74): wp_maintenance() #4 /html/wp-config.php(98): require_once('/html/wp-settin...') #5 /html/wp-load.php(50): require_once('/html/wp-config...') #6 /html/wp-blog-header.php(13): require_once('/html/wp-load.p...') #7 /html/index.php(17): require('/html/wp-blog-h...') #8 {main} thrown in /html/wp-includes/class-wp-textdomain-registry.php on line 103