ILO MP3. hi,my mp3 working fine until a few days ago,when i turn it on it says please save at

Question

hi,my mp3 working fine until a few days ago,when i turn it on it says please save at least 3mb of memory for system usage and then it turns off. it doesnt let me go to the menu or anything,what do i do?? i already took off all the songs and still nothing.