I get the following error:
Warning: preg_replace() [function.preg-replace]: Unknown modifier '<' in /home/content/42/7563242/html/wp-content/plugins/capa/capa.php on line 150
on the navigation bar when users aren't logged in, but the protection still works. It goes away after they log in. Could you tell me how to fix this? Would updating WordPress fix this problem?