Need assistance. Ok. I have a delstar Mp3 player and for some reason it plays every song for 10

Question

Ok. I have a delstar Mp3 player and for some reason it plays every song for 10 seconds and the goes to the next one and do the same I would like to know what can I do to fix the problem and what can I do to prevent the problem from ever happening again. It would mean allot if you could help.Thank!!!