RPi restarts when playing music.

Hello!

 

I have a problem with my music playlist. It's located on my server PC on an external HDD, alongside a couple movies and TV shows. If I play one random song from the Web interface and then click on another, chances are it's gonna restart the RPi and then show a crash code after the boot-up. Funny thing is, there is no crash when I change the songs from the Next & Previous buttons on the Web Interface aswell as using them from the TV remote directly on RasPlex, or playing episodes and movies. I could hit Next for days and it would not crash.

 

I'm using a 2.1A power supply and a quite short USB cable that gives me no rainbow square.

 

I really want to fix this as is the last thing that would make me use RasPlex full-time.