Pterodactyl Wings: Docker network issue

Hey there,

I am trying to get Pterodactyl running on a test server running Dietpi with CasaOS.

The system was set up this week and only has 1 or 2 other containers running. One of those is Pterodactyl Panel, which I successfully got running. I then proceeded to follow the install notes of the Wings container, i.e. set up a location, server, etc. and uploaded the config.yml via file browser.

Finally when I try to start Wings, I get the following error message from Docker:

INFO: [Jul 13 16:28:02.032] loading configuration from file config_file=/etc/pterodactyl/config.yml
 INFO: [Jul 13 16:28:02.032] configured wings with system timezone timezone=UTC
 INFO: [Jul 13 16:28:02.033] configured system user successfully gid=988 uid=988 username=pterodactyl
 INFO: [Jul 13 16:28:02.040] fetching list of servers from API
 INFO: [Jul 13 16:28:02.486] processing servers returned by the API total_configs=0
 INFO: [Jul 13 16:28:02.486] finished processing server configurations duration=388.852µs
 INFO: [Jul 13 16:28:02.492] creating missing pterodactyl0 interface, this could take a few seconds...
FATAL: [Jul 13 16:28:02.498] failed to configure docker environment error=Error response from daemon: invalid pool request: Pool overlaps with other one on this address space

After searching the web for that error it seems that it’s a network issue and I proceeded to inspect dockers networks, but there is no other container using the same network (as I said, the system is almost vanilla). Pterodactyl Panel uses subnet 172.19.0.0/16 and Wings uses 172.20.0.0/16.

That’s it, I have no idea how to proceed from here. Did anyone else have the same or a similar problem and knows how to get rid of it?

I have a complete tutorial here: