Fatal error: Uncaught TypeError: Return value of TEC\Common\StellarWP\Installer\Config::set_hook_prefix() must be an instance of TEC\Common\StellarWP\Installer\void, none returned in /www/htdocs/w017c51b/bau-suedniedersachsenstiftung.de/wp-content/plugins/the-events-calendar/common/vendor/vendor-prefixed/stellarwp/installer/src/Installer/Config.php:69 Stack trace: #0 /www/htdocs/w017c51b/bau-suedniedersachsenstiftung.de/wp-content/plugins/the-events-calendar/common/src/Common/Libraries/Installer/Provider.php(19): TEC\Common\StellarWP\Installer\Config::set_hook_prefix('tec') #1 /www/htdocs/w017c51b/bau-suedniedersachsenstiftung.de/wp-content/plugins/the-events-calendar/common/vendor/lucatume/di52/src/tad/DI52/Container.php(486): TEC\Common\Libraries\Installer\Provider->register() #2 /www/htdocs/w017c51b/bau-suedniedersachsenstiftung.de/wp-content/plugins/the-events-calendar/common/src/Tribe/Container.php(288): tad_DI52_Container->register('TEC\\Common\\Libr...') #3 /www/htdocs/w017c51b/bau-suedniedersachsenstiftung.de/wp-c in /www/htdocs/w017c51b/bau-suedniedersachsenstiftung.de/wp-content/plugins/the-events-calendar/common/vendor/vendor-prefixed/stellarwp/installer/src/Installer/Config.php on line 69