Ambience Mod Cannot Create "ambience_music" Folder

The Ambience mod is a mod that allows you to add custom songs to the game. In order for the mod to work, it creates a folder in the directory called "ambience_music" with the music config and a folder to put your songs in. However, Aternos prevents the mod from creating this folder, and due to Aternos limitations, I am unable to create this new folder as well. Is there any way that I could create this folder and add it to my server directory so the mod works?

Quote from Kurt

Where exactly is this folder located?

It should be in the same folder as the mods, world, plugins, config, etc. Usually the mod automatically creates the folder, but it's not there and I can't add a new one to the directory.

It's this mod
https://www.curseforge.com/minecraft/mc-mods/ambience-extras

Both Ambience and Ambience Extras are basically the same, but the latter just has extra features. However, in both of them, it does automatically create the folder in my experience.