Hi - first have a read of this:
One important thing is to use formatted text tags (accessed using </> on the posting toolbar) for logs and configurations, so they look like this:
Zigbee2MQTT:error 2025-07-30 10:51:45: Failed to start zigbee
Zigbee2MQTT:error 2025-07-30 10:51:45: Exiting…
Zigbee2MQTT:error 2025-07-30 10:51:45: Error: Failed to connect to the adapter (Error: SRSP - SYS - ping after 6000ms)
at ZStackAdapter. (/app/node_modules/zigbee-herdsman/dist/adapter/z-stack/adapter/zStackAdapter.js:94:31)
Once you have edited your post to fix that, we will also need to hear about how your environment is configured and will also need to see your Zigbee2MQTT configuration.