Fatal error: Uncaught TypeError: Argument 1 passed to menu_class::urlencode() must be of the type string, null given, called in /www/htdocs/w01266ce/dj-tomdefunk.de/lib/classes/artikel_class.php on line 1094 and defined in /www/htdocs/w01266ce/dj-tomdefunk.de/lib/classes/menu_class.php:1973
Stack trace:
#0 /www/htdocs/w01266ce/dj-tomdefunk.de/lib/classes/artikel_class.php(1094): menu_class->urlencode(NULL)
#1 /www/htdocs/w01266ce/dj-tomdefunk.de/lib/classes/artikel_class.php(119): artikel_class->check_artikel()
#2 /www/htdocs/w01266ce/dj-tomdefunk.de/all_inc_front.php(80): artikel_class->make_inhalt()
#3 /www/htdocs/w01266ce/dj-tomdefunk.de/guestbook.php(17): require_once('/www/htdocs/w01...')
#4 {main}
thrown in /www/htdocs/w01266ce/dj-tomdefunk.de/lib/classes/menu_class.php on line 1973