Fatal error: Uncaught TypeError: slug_exists(): Argument #1 ($con) must be of type mysqli, string given, called in /customers/3/6/e/lucassvensson.se/httpd.www/functions.php on line 84 and defined in /customers/3/6/e/lucassvensson.se/httpd.www/functions.php:79 Stack trace: #0 /customers/3/6/e/lucassvensson.se/httpd.www/functions.php(84): slug_exists('undefined') #1 /customers/3/6/e/lucassvensson.se/httpd.www/header.php(3): include('/customers/3/6/...') #2 /customers/3/6/e/lucassvensson.se/httpd.www/contact.php(2): include('/customers/3/6/...') #3 {main} thrown in /customers/3/6/e/lucassvensson.se/httpd.www/functions.php on line 79