Android phone error notification

[Android Question]

I have a samsung galaxy y duos android phone. Recently,I keep getting a notification that system storage getting low and i am unable to get any text message. I also says text message memory full. But i have found that i still have space left in my phone...Please help me.

 

[Rukbat]

You don't have space where it's needed. Remove some pictures, songs, videos or apps. (Back them up first if you don't want to lose them.)