Fatal error: Uncaught Error: Call to undefined function plugin_dir_path() in /users/laufgruppe-lvb/www/wordpress/wp-content/plugins/so-widgets-bundle/base/inc/installer/siteorigin-installer.php:15 Stack trace: #0 {main} thrown in /users/laufgruppe-lvb/www/wordpress/wp-content/plugins/so-widgets-bundle/base/inc/installer/siteorigin-installer.php on line 15