Facebook chat on iPhone app?

Lastchance

New member
I'm having problems. I've tried deleting and downloading again and it still doesn't work. Every time I send someone a message on FB chat app on my iPhone it come back saying "your alert could no be delivered at this time" ? I don't understand why this happens! How can i sort it out? It's not the wifi as that's got full bars and the rest of the app works fine it's just the chat

Help!
 
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