Getting HA config error

Hi,

my config.yaml


# Wake on LAN
switch:
  - platform: wake_on_lan
    name: "Roon_ROCK"
    mac: 1c:69:7a:a6:0b:be
    turn_off:
     service: shell_command.turn_off_Roon_ROCK

shell_command:
  turn_off_Roon_ROCK: curl http://192.168.2.2/1/poweroff

But this is an error message I’m getting in yaml validation:

Invalid config for [shell_command]: invalid slug turn_off_Roon_ROCK (try turn_off_roon_rock) for dictionary value @ data[‘shell_command’]. Got OrderedDict([(‘turn_off_Roon_ROCK’, ‘curl http://192.168.2.2/1/poweroff’)]). (See /config/configuration.yaml, line 31).

what is my error??
thanks for help

It tells you right there; change turn_off_Roon_ROCK to turn_off_roon_rock

I am STUPID,

thnks