Fatal error: Uncaught Error: Call to a member function query() on null in D:\Programme\TIMESYS\TIMENSION\kunde22\htdocs\TIMENSION\timension_php\common\Classes\class.mandant.php:42 Stack trace: #0 D:\Programme\TIMESYS\TIMENSION\kunde22\htdocs\TIMENSION\timension_php\common\Classes\class.mandant.php(26): MANDANT->_ladeMandanten() #1 D:\Programme\TIMESYS\TIMENSION\kunde22\htdocs\TIMENSION\runonce\infoservice_install.php(22): MANDANT->__construct() #2 {main} thrown in D:\Programme\TIMESYS\TIMENSION\kunde22\htdocs\TIMENSION\timension_php\common\Classes\class.mandant.php on line 42