Typed property bdaw\Bootstrap::$config must not be accessed before initialization
#0 /var/customers/webs/bdaw/mattzug.de/bmm/php/classes/bdaw/Bootstrap.php(64): bmm\controller\Verein->__construct() #1 /var/customers/webs/bdaw/mattzug.de/bmm/php/index.php(19): bdaw\Bootstrap->__construct() #2 {main}