Z-Wave Serial Controller bridge shows "ERROR: HANDLER" after Update to OH 3.3.0 M2

sure, here is the output (actually before downgrade - but I assume it has not changed by OH version)

UID: zwave:serial_zstick:5045e1bf
label: Z-Wave Serial Controller
thingTypeUID: zwave:serial_zstick
configuration:
  controller_softreset: 0
  security_networkkey: xxxx
  security_inclusionmode: 0
  controller_suc: false
  controller_sisnode: 1
  controller_sync: 0
  controller_master: true
  inclusion_mode: 2
  port: /dev/ttyACM0
  controller_wakeupperiod: 3600
  controller_exclude: false
  heal_time: 2
  controller_inclusiontimeout: 30
  controller_hardreset: 0

I had no chance yet to update again and enable debug log:set Debug org.openhab.core
like you mentioned in your post