Repairing mp3 player

[nForce]

Hello,

I have a cheap ebay mp3 player:
https://www.ebay.com/itm/New-Portable-Music-MP3-Player-USB-Digital-LCD-Screen-Support-32GB-TF-FM-Radio/152058961872?_trkparms=aid%3D555018%26algo%3DPL.SIM%26ao%3D1%26asc%3D57921%26meid%3Daf740338840d4ed59e454a15efa04b23%26pid%3D100005%26rk%3D11%26rkt%3D12%26mehot%3Dpp%26sd%3D223278297642%26itm%3D152058961872%26pg%3D2047675&_trksid=p2047675.c100005.m1851

I copied a few times .mp3 files on the sd card throuqh usb. It worked fine. But today I have turn it on, and selected music and I got error "No file!". When I plug it into the computer I see that there are files on the micro SD card. I have tried several times to format using different file systems, like FAT, FAT32 and NTFS and I get the same error.

Because I love electronics, I will try to fix it. Does anyone have any idea what is wrong?

Thanks.