Please help me setup my smlight-slzb 06 dongle via usb

I have so far connected the dongle via usb to my HA server box, installed, started mqtt add-on and now running into an issue with the zigbee2mqtt add-on. I’m unable to start it at all as it keeps showing me a 502 gateway. Below is my .yaml and the error i’m seeing the logs. I’ve spent a lot of days to troubleshoot this issue so seeking for help now.

.yaml

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:
  server: mqtt://core-mosquitto:1883
  user: xxx
  password: xxx
serial:
  port: >-
    /dev/serial/by-id/usb-SMLIGHT_SMLIGHT_SLZB-06_80ca14afa18bef11b8cc20ccef8776e9-if00-port0
  baudrate: 115200
  adapter: zstack

Output in logs:

[17:50:33] INFO: Preparing to start...
[17:50:33] INFO: Socat not enabled
[17:50:34] INFO: Starting Zigbee2MQTT...
Starting Zigbee2MQTT without watchdog.
[2025-01-29 17:50:35] info: 	z2m: Logging to console, file (filename: log.log)
[2025-01-29 17:50:35] info: 	z2m: Starting Zigbee2MQTT version 2.0.0 (commit #unknown)
[2025-01-29 17:50:35] info: 	z2m: Starting zigbee-herdsman (3.2.1)
[2025-01-29 17:50:35] info: 	zh:zstack:znp: Opening SerialPort with {"path":"/dev/serial/by-id/usb-SMLIGHT_SMLIGHT_SLZB-06_80ca14afa18bef11b8cc20ccef8776e9-if00-port0","baudRate":115200,"rtscts":false,"autoOpen":false}
[2025-01-29 17:50:35] info: 	zh:zstack:znp: Serialport opened
[2025-01-29 17:50:35] info: 	zh:zstack:znp: Writing CC2530/CC2531 skip bootloader payload
[2025-01-29 17:50:36] info: 	zh:zstack:znp: Skip bootloader for CC2652/CC1352
[2025-01-29 17:50:55] error: 	z2m: Error while starting zigbee-herdsman
[2025-01-29 17:50:55] error: 	z2m: Failed to start zigbee-herdsman
[2025-01-29 17:50:55] error: 	z2m: Check https://www.zigbee2mqtt.io/guide/installation/20_zigbee2mqtt-fails-to-start_crashes-runtime.html for possible solutions
[2025-01-29 17:50:55] error: 	z2m: Exiting...
[2025-01-29 17:50:55] error: 	z2m: Error: Failed to connect to the adapter (Error: SRSP - SYS - ping after 6000ms)

For anyone having this same issue - you need to uninstall ZHA and voila

thanks to this genius - Zigbee2MQTT not starting with "Error: Failed to connect to the adapter (Error: SRSP - SYS - ping after 6000ms)"