I used my MP3 player for about 3 weeks. all i had on was about 15 or 16 recordings of songs, one day i pluged it in my computer to charge it and it erased all my songs. Now everytime i try to record somthing on it, it says ERROR and then goes back to the palying page and says NO FILE. Whats wrong with it and what should i do?

Cassie-Faye Campbell, January 2011