The Basics
- Is this the first time you’ve seen this error? (Yes / No):
yes
- When did this problem seem to first start?
yesterday
- Installation method (e.g. AlO, NCP, Bare Metal/Archive, etc.)
AIOon Linux Mint
- Are you using CloudfIare, mod_security, or similar? (Yes / No)
no
Summary of the issue you are facing:
Cannot access management interface at <local ip>/8080. Nextcloud stopped working.
Bare with me I’m a beginner. Both with Nextcloud as with docker.
I’ve installed Nextcloud a month ago and it has been running fine up to yesterday. I have made backups but first like to understand how I can fix this in the easy way.
As I could not access the web interface I stopped all docker instances from the commandline. Then I started only nextcloud-aio-mastercontainer again.
What I’ve found is the output of docker logs nextcloud-aio-mastercontainer
NOTICE: PHP message: Slim Application Error
Type: Exception
Code: 0
Message: Could not create the nextcloud-aio network: {"message":"client version 1.41 is too old. Minimum supported API version is 1.44, please upgrade your client to a newer version"
This sound easy but I have no clue what client is meant here. I tried several commands but cannot find anything containing the version 1.41 (and I cannot use the web interface)
I’m afraid to purge anything as the installation contains 150GB photos.
The output of docker network inspect nextcloud-aio is
[
{
"Name": "nextcloud-aio",
"Id": "cfed52b4ca3d3374f91fa4d0fa491613fb3dd68bfbf88535ea2b9442bcbab017",
"Created": "2025-10-05T12:12:08.866278153+02:00",
"Scope": "local",
"Driver": "bridge",
"EnableIPv4": true,
"EnableIPv6": false,
"IPAM": {
"Driver": "default",
"Options": null,
"Config": [
{
"Subnet": "172.18.0.0/16",
"IPRange": "",
"Gateway": "172.18.0.1"
}
]
},
"Internal": false,
"Attachable": false,
"Ingress": false,
"ConfigFrom": {
"Network": ""
},
"ConfigOnly": false,
"Options": {},
"Labels": {},
"Containers": {
"6ec37afa9eeb9fc54b4411ec5684b105d768fc1207b59c3d0893458f5cd4bed9": {
"Name": "nextcloud-aio-mastercontainer",
"EndpointID": "80690d18759df88d85a1defa0f237bad843eaf2b58eb83717ed97329b57c0c59",
"MacAddress": "de:ab:9b:76:bb:d7",
"IPv4Address": "172.18.0.2/16",
"IPv6Address": ""
}
},
"Status": {
"IPAM": {
"Subnets": {
"172.18.0.0/16": {
"IPsInUse": 4,
"DynamicIPsAvailable": 65532
}
}
}
}
}
]
And why would this happen all of a sudden? I was not updating anything.
I hope someone can help with some guidance on the next step in trouble shooting.
I created these for an older version of Docker because of a problem with Mailcow at the time. So don’t forget to adjust the version numbers accordingly!
