Notification dont work

[duyfr]

i have problem with ipb 4.0.12.1 , notification dont working , 

and when i click to see all notification i have 1 white page 

i dont know something wrong with this ?

thanks,

[stig olsen]

How did you get that notification icon? 

[duyfr]

after  check error in php , i saw that :

IPS\Dispatcher\_Controller->execute() C:\wamp\www\system\Dispatcher\Dispatcher.php:129

[08-Aug-2015 10:56:20 UTC] PHP   4. IPS\core\modules\front\system\_notifications->manage() C:\wamp\www\system\Dispatcher\Controller.php:94

[08-Aug-2015 10:56:20 UTC] PHP   5. IPS\Notification\_Table->getRows() C:\wamp\www\applications\core\modules\front\system\notifications.php:51

[08-Aug-2015 10:56:20 UTC] PHP   6. IPS\Notification\_Inline->getData() C:\wamp\www\system\Notification\Table.php:99

[08-Aug-2015 10:56:20 UTC] PHP   7. IPS\core\extensions\core\Notifications\_Profile->parse_profile_reply() C:\wamp\www\system\Notification\Inline.php:239

how to fix it pls ?