Fatal error: Uncaught Error: Undefined constant "sender_default" in /var/www/web53/htdocs/login_agentur/code/bib_config.php:65 Stack trace: #0 /var/www/web53/htdocs/login_kunden/code/db.php(14): require_once() #1 /var/www/web53/htdocs/login_kunden/index.php(2): require_once('/var/www/web53/...') #2 {main} thrown in /var/www/web53/htdocs/login_agentur/code/bib_config.php on line 65