I just updated wordpress, wiget logic and widget logic by path. Now I got an error message in the top of my page. Actually I am running a multisite wordpress.
Warning: preg_match(): Unknown modifier '*' in /var/www/web116/html/wp-content/plugins/widget-logic-by-path/widget_logic_by_path.php on line 75
It does not help to deactivate widget logic by path, but it does help deactivate widget logic. But they don't answer in their support board.