Portainer Problem

I have been using Portainer on my RPI4 device for a long time. I had connected it to a domain via Cloudflare Tunnel. When I checked today, I realized I couldn’t access it. I performed a reinstall via the DietPi Software list to update the version, but I didn’t get any results. I am sharing some outputs. What could be the problem?

docker logs --tail 20 portainer

2025/11/24 12:36AM INF github.com/portainer/portainer/api/cmd/portainer/main.go:392 > proceeding without encryption key |

2025/11/24 12:36AM INF github.com/portainer/portainer/api/database/boltdb/db.go:125 > loading PortainerDB | filename=portainer.db

2025/11/24 12:36AM INF github.com/portainer/portainer/api/chisel/service.go:198 > Found Chisel private key file on disk | private-key=/data/chisel/private-key.pem

2025/11/24 00:36:20 server: Reverse tunnelling enabled

2025/11/24 00:36:20 server: Fingerprint Z3DugsCTO2L+zqJLNPnFEvP8uq3j2giq2zBsiumUhpg=

2025/11/24 00:36:20 server: Listening on http://0.0.0.0:8000

2025/11/24 12:36AM WRN github.com/portainer/portainer/api/docker/snapshot.go:53 > unable to snapshot engine information | error="Error response from daemon: client version 1.42 is too old. Minimum supported API version is 1.44, please upgrade your client to a newer version" environment=local

2025/11/24 12:36AM WRN github.com/portainer/portainer/api/docker/snapshot.go:70 > unable to snapshot containers | error="Error response from daemon: client version 1.42 is too old. Minimum supported API version is 1.44, please upgrade your client to a newer version" environment=local

2025/11/24 12:36AM WRN github.com/portainer/portainer/api/docker/snapshot.go:75 > unable to snapshot images | error="Error response from daemon: client version 1.42 is too old. Minimum supported API version is 1.44, please upgrade your client to a newer version" environment=local

2025/11/24 12:36AM FTL github.com/portainer/portainer/api/cmd/portainer/main.go:572 > failed initializing upgrade service | error="failed to determine container platform: failed to retrieve docker info: Error response from daemon: client version 1.42 is too old. Minimum supported API version is 1.44, please upgrade your client to a newer version" stack_trace=[{"func":"NewService","line":"49","source":"upgrade.go"},{"func":"buildServer","line":"570","source":"main.go"},{"func":"main","line":"640","source":"main.go"},{"func":"main","line":"267","source":"proc.go"},{"func":"goexit","line":"1197","source":"asm_arm64.s"}]

2025/11/24 12:37AM INF github.com/portainer/portainer/api/cmd/portainer/main.go:369 > encryption key file not present | filename=portainer

2025/11/24 12:37AM INF github.com/portainer/portainer/api/cmd/portainer/main.go:392 > proceeding without encryption key |

2025/11/24 12:37AM INF github.com/portainer/portainer/api/database/boltdb/db.go:125 > loading PortainerDB | filename=portainer.db

2025/11/24 12:37AM INF github.com/portainer/portainer/api/chisel/service.go:198 > Found Chisel private key file on disk | private-key=/data/chisel/private-key.pem

2025/11/24 00:37:21 server: Reverse tunnelling enabled

2025/11/24 00:37:21 server: Fingerprint Z3DugsCTO2L+zqJLNPnFEvP8uq3j2giq2zBsiumUhpg=

2025/11/24 00:37:21 server: Listening on http://0.0.0.0:8000

2025/11/24 12:37AM WRN github.com/portainer/portainer/api/docker/snapshot.go:53 > unable to snapshot engine information | error="Error response from daemon: client version 1.42 is too old. Minimum supported API version is 1.44, please upgrade your client to a newer version" environment=local

2025/11/24 12:37AM WRN github.com/portainer/portainer/api/docker/snapshot.go:70 > unable to snapshot containers | error="Error response from daemon: client version 1.42 is too old. Minimum supported API version is 1.44, please upgrade your client to a newer version" environment=local

2025/11/24 12:37AM FTL github.com/portainer/portainer/api/cmd/portainer/main.go:572 > failed initializing upgrade service | error="failed to determine container platform: failed to retrieve docker info: Error response from daemon: client version 1.42 is too old. Minimum supported API version is 1.44, please upgrade your client to a newer version" stack_trace=[{"func":"NewService","line":"49","source":"upgrade.go"},{"func":"buildServer","line":"570","source":"main.go"},{"func":"main","line":"640","source":"main.go"},{"func":"main","line":"267","source":"proc.go"},{"func":"goexit","line":"1197","source":"asm_arm64.s"}]

Required Information

cat /boot/dietpi/.version
G_DIETPI_VERSION_CORE=9
G_DIETPI_VERSION_SUB=19
G_DIETPI_VERSION_RC=2
G_GITBRANCH=‘master’
G_GITOWNER=‘MichaIng’

trixie 0

RPi 4 Model B (aarch64)

Linux DietPi 6.12.47+rpt-rpi-v8 #1 SMP PREEMPT Debian 1:6.12.47-1+rpt1 (2025-09-16) aarch64 GNU/Linux

Why not doing a forum search? Docker container error - #2 by Joulinar