Why do I keep getting a message not sent notification?

[AC Question]

Message not sent notification

I dropped my phone a couple days ago now every time I send a text it sends me a notification saying "message not sent" (but they are sending) does anybody know why this is happening and how to make it stop? Its annoying.

 

[Rukbat]

Re: Message not sent notification

Something broke inside the phone. It's going to have to go to a shop and be opened up. (Back everything up first - Backing up an Android Device.)