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/files/index.php(143): setArticleNumbers()
#1 /www/wwwroot/slaed.net/modules/files/index.php(360): liste()
#2 /www/wwwroot/slaed.net/index.php(48): include('...')
#3 {main}
thrown in /www/wwwroot/slaed.net/core/core.php on line 499