( ! ) Fatal error: Call to a member function getSetting() on null in /var/www/html/classes/notification/Notification.inc.php on line 115
Call Stack
#	Time	Memory	Function	Location
1	0.0000	240776	{main}( )	.../index.php:0
2	0.0071	993760	PKPApplication->execute( )	.../index.php:66
3	0.0073	1048720	Dispatcher->dispatch( )	.../PKPApplication.inc.php:170
4	0.3427	1665440	PKPPageRouter->route( )	.../Dispatcher.inc.php:130
5	0.3448	1782536	NotificationHandler->subscribeMailList( )	.../PKPPageRouter.inc.php:177
6	0.3459	1959784	NotificationMailingListForm->display( )	.../NotificationHandler.inc.php:192
7	0.3460	1960192	Notification->getSubscriptionSettings( )	.../NotificationMailingListForm.inc.php:50