Fatal error: Uncaught TypeError: Return value of MPWEM_Admin::load_file() must be an instance of void, none returned in /www/htdocs/w00f88cb/SITES/01_Steffen_Liebener/wp-content/plugins/mage-eventpress/Admin/MPWEM_Admin.php:49 Stack trace: #0 /www/htdocs/w00f88cb/SITES/01_Steffen_Liebener/wp-content/plugins/mage-eventpress/Admin/MPWEM_Admin.php(13): MPWEM_Admin->load_file() #1 /www/htdocs/w00f88cb/SITES/01_Steffen_Liebener/wp-content/plugins/mage-eventpress/Admin/MPWEM_Admin.php(62): MPWEM_Admin->__construct() #2 /www/htdocs/w00f88cb/SITES/01_Steffen_Liebener/wp-content/plugins/mage-eventpress/inc/MPWEM_Dependencies.php(32): require_once('/www/htdocs/w00...') #3 /www/htdocs/w00f88cb/SITES/01_Steffen_Liebener/wp-content/plugins/mage-eventpress/inc/MPWEM_Dependencies.php(14): MPWEM_Dependencies->load_file() #4 /www/htdocs/w00f88cb/SITES/01_Steffen_Liebener/wp-content/plugins/mage-eventpress/inc/MPWEM_Dependencies.php(244): MPWEM_Dependencies->__construct() #5 /www/htdocs/w00f88cb/SITES/01_Steffen_Liebener/wp-content/plugins in /www/htdocs/w00f88cb/SITES/01_Steffen_Liebener/wp-content/plugins/mage-eventpress/Admin/MPWEM_Admin.php on line 49