Fatal error: Uncaught TypeError: setArticleNumbers(): Return value must be of type string, null returned in /www/wwwroot/slaed.net/core/core.php:499
Stack trace:
#0 /www/wwwroot/slaed.net/modules/shop/index.php(125): setArticleNumbers()
#1 /www/wwwroot/slaed.net/modules/shop/index.php(528): shop()
#2 /www/wwwroot/slaed.net/index.php(48): include('...')
#3 {main}
thrown in /www/wwwroot/slaed.net/core/core.php on line 499