Z2M via LAN coordinator

Hi there!

I want to switch my fine working Z2M setup, which is currently operated by a (Sonoff Zigbee 3.0) USB device to a LAN coodinator.

The LAN coordinator is also a Sonoff Zigbee 3.0 USB connected via Serial Interface with an ESP32 ETH01, operating with Tasmota as TCP bridge.

My config looks like this:

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:
  base_topic: zigbee2mqtt
  user: xxx
  password: xxx
  server: mqtt://192.168.1.116:1883
serial:
  port: 'tcp://192.168.1.199:6638'

The weired thing: Everything wokted teporatily with my LAN coordinator, but after changing the TCP bridge (ESP32ETH) from wifi to LAN I get an error after starting Z2M:

[23:00:37] INFO: Preparing to start...
[23:00:37] INFO: Socat not enabled
[23:00:39] INFO: Starting Zigbee2MQTT...
Zigbee2MQTT:info  2023-04-22 23:00:45: Logging to console and directory: '/config/zigbee2mqtt/log/2023-04-22.23-00-45' filename: log.txt
Zigbee2MQTT:info  2023-04-22 23:00:45: Starting Zigbee2MQTT version 1.30.3 (commit #unknown)
Zigbee2MQTT:info  2023-04-22 23:00:45: Starting zigbee-herdsman (0.14.103)
Zigbee2MQTT:error 2023-04-22 23:07:32: Error while starting zigbee-herdsman
Zigbee2MQTT:error 2023-04-22 23:07:32: Failed to start zigbee
Zigbee2MQTT:error 2023-04-22 23:07:32: Check https://www.zigbee2mqtt.io/guide/installation/20_zigbee2mqtt-fails-to-start.html for possible solutions
Zigbee2MQTT:error 2023-04-22 23:07:32: Exiting...
Zigbee2MQTT:error 2023-04-22 23:07:33: TypeError: Cannot read properties of undefined (reading 'payload')
    at AdapterNvMemory.writeExtendedTableEntry (/app/node_modules/zigbee-herdsman/src/adapter/z-stack/adapter/adapter-nv-memory.ts:211:27)
    at AdapterNvMemory.writeTable (/app/node_modules/zigbee-herdsman/src/adapter/z-stack/adapter/adapter-nv-memory.ts:321:17)
    at AdapterBackup.restoreBackup (/app/node_modules/zigbee-herdsman/src/adapter/z-stack/adapter/adapter-backup.ts:349:13)
    at ZnpAdapterManager.beginRestore (/app/node_modules/zigbee-herdsman/src/adapter/z-stack/adapter/manager.ts:299:9)
    at ZnpAdapterManager.start (/app/node_modules/zigbee-herdsman/src/adapter/z-stack/adapter/manager.ts:80:17)
    at Controller.start (/app/node_modules/zigbee-herdsman/src/controller/controller.ts:132:29)
    at Zigbee.start (/app/lib/zigbee.ts:58:27)
    at Controller.start (/app/lib/con

Evry help is highly appreciated. Thanks!