IPhone 5 isn't receiving Texts well after Battery Died?

Had some weird issues. IPhone 5 battery ran down and after it died the charger stopped working.

Working on another charger and all is fine as far as power is concerned. However, people can't text me normally. To them, it auto-failed the iMessage and sends as a text message and I'm not receiving the majority of the messages they send.

What would you suggest I do to fix this?

Reset it

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