Facebook keeps crashing on iphone 4?

Can you please tell me why i have ios 7.0.4 and everytime i enter facebook it crashes when i like a post or add someone in people you may know even when i press on the notifications section it crashes and sends me to homescreen all my apps work fine twitter, insagram, whatsapp, bbm… But facebook always crash any solutions for my problem?

Try to uninstall your FB app, then reinstall it from Apple Store.
If it does not work, try to access FB via web, either the FB mobile site https://m.facebook.com/...ebook.com/ or the FB full site https://www.facebook.com/...ebook.com/.

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