Zigbee Stick couldn't be found

Hi,
i’m running Homeassistant under Proxmox for several month without problems so far. But now… ;-):
Suddenly the Sonoff Zigbee USB Stick could not be found by the system. The configuration is set like this as before:
port: >- /dev/serial/by-id/usb-Silicon_Labs_Sonoff_Zigbee_3.0_USB_Dongle_Plus_0001-if00-port0

But the protocoll looks like this:

[09:38:04] INFO: Preparing to start... [09:38:04] INFO: Socat not enabled [09:38:05] INFO: Starting Zigbee2MQTT... Zigbee2MQTT:info 2023-10-08 09:38:07: Logging to console and directory: '/config/zigbee2mqtt/log/2023-10-08.09-38-07' filename: log.txt Zigbee2MQTT:info 2023-10-08 09:38:07: Starting Zigbee2MQTT version 1.33.1 (commit #unknown) Zigbee2MQTT:info 2023-10-08 09:38:07: Starting zigbee-herdsman (0.19.0) Zigbee2MQTT:error 2023-10-08 09:38:27: Error while starting zigbee-herdsman Zigbee2MQTT:error 2023-10-08 09:38:27: Failed to start zigbee Zigbee2MQTT:error 2023-10-08 09:38:27: Check https://www.zigbee2mqtt.io/guide/installation/20_zigbee2mqtt-fails-to-start.html for possible solutions Zigbee2MQTT:error 2023-10-08 09:38:27: Exiting... Zigbee2MQTT:error 2023-10-08 09:38:27: Error: Failed to connect to the adapter (Error: SRSP - SYS - ping after 6000ms) at ZStackAdapter.start (/app/node_modules/zigbee-herdsman/src/adapter/z-stack/adapter/zStackAdapter.ts:103:27) at Controller.start (/app/node_modules/zigbee-herdsman/src/controller/controller.ts:132:29) at Zigbee.start (/app/lib/zigbee.ts:60:27) at Controller.start (/app/lib/controller.ts:101:27) at start (/app/index.js:107:5)

Restarts, reboots and so on didn’t solve the problem, has anyone here more ideas to fix it?
Thanks a lot in advance of any solution!

Norbert

Is the adapter still showing up in the hardware menu for HA?

Yes, it’s still there as you can see at the screenshot.

Have you checked off the items in the troubleshooting list?

https://www.zigbee2mqtt.io/guide/installation/20_zigbee2mqtt-fails-to-start.html#error-srsp-sys-ping-after-6000ms