Volumio playes mp3 file and then a randome radio station

Hello forum,

i have Volumio 2.729 running on a raspberry pi 1 B+ since 2 mounts.

Until know i only played radio stations on it. I have connected my NAS to the PI to play my mp3 files.

The problem is, that volumio only plays one mp3 file and the starts playing a random radio station.

It happens every time i want to listen to mp3s.

Does any one know what is going on and how i can fix this?

thank you in advance.