I've been struggling with this for a long time, so this is my last resort. I am simply trying to add a music that plays to a player of my choosing with the /playsound or /iaplaysound command.
I followed the sound tutorial in the wiki: https://itemsadder.devs.beer/plugin-usage/adding-content/sounds. My .ogg file should be correct, I converted it on the recommended website (online-convert.com), with the mono option checked. I followed every step, the only thing I changed is the .ogg file that is now named "mymusic.ogg", and I also changed it in the .json file.
My suspicion is that I missed something in the configuration or I'm typing the wrong command in-game. I am trying to type: "/iaplaysound mysounds:mymusic Stalk3r77" but I don't know if that's correct in my case.
Here are some screenshots:



Any help is greatly appreciated !
Thanks