Lost my world

[Ryaxs7]

Hello, i've set up the itzg Minecraft server last Week.
i replaced the world with my old minecraft world.
Everything worked fine. I could restart and repull my Container without any issues.
But today i restarted the my Ubuntu Server VM and after i started the Container a new world was created.
Before i restarted the vm i did save-all, but i dont know where the saves are located.
Hope anyone could help me.
Thanks for your effort.

Here is my Config:

version: "3.8"

services:
mc:
image: itzg/minecraft-server
tty: true
stdin_open: true
ports:
- "25565:25565"
environment:
EULA: "TRUE"
LEVEL: "world"
WHITELIST: "TRUE"
OPS: "Ryaxs"
MEMORY: 4G
volumes:
# attach the relative directory 'data' to the container's /data path
- ./minecraftdata2:/data