Fatal error: Uncaught TypeError: count(): Argument #1 ($value) must be of type Countable|array, null given in /home/httpd/vhosts/admin.fahrschule-xxl.ch/httpdocs/warenkorb.php:14
Stack trace:
#0 {main}
  thrown in /home/httpd/vhosts/admin.fahrschule-xxl.ch/httpdocs/warenkorb.php on line 14