DK digital mp3 player is not functioning properly

Question

i have a DK digital mp3 player(1GB,USB type)...this player plays song 3 to 6 minutes then gives msg in display as "error ( ) 41" and stops playing....

again i need to restart the player..But same error happens in another 3 to 6 minutes.....

please provide me solution to solve this issue.......

my mail id is [e-mail]

Thanks in advance
Dheiva.