How to load an *.mp3 from my asset in unity using FMOD?

I have an application that you can put your own songs and I want it to load them with the FMOD system.

I’m trying this and unity closes me

FMOD.Sound sound1;
FMOD.System system;
FMOD.Channel channel;
FMOD.ChannelGroup channelGroup;
private void Start()
public async void LoadSong()

    FMOD.Factory.System_Create(out system);
    result = system.createChannelGroup(null, out channelGroup);
    result = system.createSound("/Audio/BgMusic/BackgroundMusicLoop.mp3", FMOD.MODE.DEFAULT, out sound1);
    result = system.playSound(sound1, channelGroup, false, out channel);

Could you please try replacing FMOD.Factory.System_Create(out system); with FMOD.System system = FMODUnity.RuntimeManager.CoreSystem(); and see if it works then? It looks like you’re creating another FMOD system even though there is one running already.