Error zigbee2mqqt will not start anymore

Configuration Zigbee
1

I have the problem that has not started since yesterday zigbee2mqqt. What causes this error and how can I fix it?

SZLB-06 Firmware 2.8.8
Home Assistant on Proxmox VM

[07:18:03] INFO: Preparing to start...
[07:18:04] INFO: Socat not enabled
[07:18:04] INFO: Enabled Zigbee2MQTT watchdog with value 'default'
[07:18:04] INFO: Starting Zigbee2MQTT...
Starting Zigbee2MQTT with watchdog (2000,60000,300000,900000,1800000,3600000).
[2025-06-07 07:18:35] error: 	z2m: Error while starting zigbee-herdsman
[2025-06-07 07:18:35] error: 	z2m: Failed to start zigbee-herdsman
[2025-06-07 07:18:35] error: 	z2m: Check https://www.zigbee2mqtt.io/guide/installation/20_zigbee2mqtt-fails-to-start_crashes-runtime.html for possible solutions
[2025-06-07 07:18:35] error: 	z2m: Exiting...
[2025-06-07 07:18:36] error: 	z2m: Error: target adapter aps link key data table size insufficient (size=3)
    at AdapterBackup.restoreBackup (/app/node_modules/.pnpm/[email protected]/node_modules/zigbee-herdsman/src/adapter/z-stack/adapter/adapter-backup.ts:367:31)
    at processTicksAndRejections (node:internal/process/task_queues:105:5)
    at ZnpAdapterManager.beginRestore (/app/node_modules/.pnpm/[email protected]/node_modules/zigbee-herdsman/src/adapter/z-stack/adapter/manager.ts:317:9)
    at ZnpAdapterManager.start (/app/node_modules/.pnpm/[email protected]/node_modules/zigbee-herdsman/src/adapter/z-stack/adapter/manager.ts:79:21)
    at ZStackAdapter.start (/app/node_modules/.pnpm/[email protected]/node_modules/zigbee-herdsman/src/adapter/z-stack/adapter/zStackAdapter.ts:154:16)
    at Controller.start (/app/node_modules/.pnpm/[email protected]/node_modules/zigbee-herdsman/src/controller/controller.ts:133:29)
    at Zigbee.start (/app/lib/zigbee.ts:71:27)
    at Controller.start (/app/lib/controller.ts:102:13)
    at start (/app/index.js:149:5)
2

Can you connect to your SLZB-06 using http://slzb-06 or it’s IP Address?

3

yeah, that’s working

4

What mode is the SLZB set to in the menu?

5

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6

Can you share your Z2M configuration?

Our ip address still matches the one in Z2M, correct?

7 
data_path: /config/zigbee2mqtt
socat:
  enabled: false
  master: pty,raw,echo=0,link=/tmp/ttyZ2M,mode=777
  slave: tcp-listen:8485,keepalive,nodelay,reuseaddr,keepidle=1,keepintvl=1,keepcnt=5
  options: "-d -d"
  log: false
mqtt: {}
serial:
  port: tcp://192.168.1.3:6638
  adapter: zstack
watchdog: default

Yes

8

You should have settings in the mqtt: area as well. Check the documentation tab for further info.

Like this:

server: mqtt://core-mosquitto:1883
user: xxxxx
password: xxxx

User and password should match what was set via your Mosquitto Broker

9

It ran with the same configuration for 1 year. Why should the data be entered for the Mosquitto Broker now?

10

I’m providing you a possible resolution and the same info that is in the installation instructions. I can’t say why it worked before.

Feel free to pursue other resolutions if you don’t think your configuration is the issue.

11

In the configuration.yaml of zigbee2mqtt is available under mqtt: an entry is available. But I didn’t create this manually. Does the login data need to be available from mosquitto broker?

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12

Maybe reboot your SLZB-06

13

have done several times

14

I’ve done these steps. Now z2m starts again, all devices are gone.

depends on your setup.
you cleared the coordinator, and you take away the backup, then the coordinator tries to start with a different channel.
dont change the coordinator backup.
start the slzb with the antenne taken off (or shielded with alu)
then start z2m
after z2m is started you can put the antenna back.