Facebook notifications on my phone don't work?

[Kaleo S]

I accidentally disabled the facebook notifications in my task BaR On My Razr.. I don't know how to get them back.. I tried going through the app settings on Facebook and its still not working even when I upload pictures it doesn't tell me if it's uploading and when its done.. there was a notification on my passport and I accidentally clicked on it and disable notifications from Facebook and now I'm wondering how to get it back

[?]

Restart it