Cannot read property 'indexOf' of undefined

[theloading123]

Everytime i try to launch "Homebridge" this message shows up, and i don't know what to do. Please help!!
i only have these plugins:
cmd-switch2
ps4-waker

Does anybody knows what to do?

C:\WINDOWS\system32>homebridge
[2018-8-19 16:52:36] Loaded plugin: homebridge-cmdswitch2
[2018-8-19 16:52:36] Registering platform 'homebridge-cmdswitch2.cmdSwitch2'
[2018-8-19 16:52:36] ---
[2018-8-19 16:52:36] Loaded config.json with 1 accessories and 1 platforms.
[2018-8-19 16:52:36] ---
[2018-8-19 16:52:36] Loading 1 platforms...
[2018-8-19 16:52:36] [CMD Switch] Initializing cmdSwitch2 platform...
[2018-8-19 16:52:36] Loading 1 accessories...
C:\Users*********\AppData\Roaming\npm\node_modules\homebridge\lib\api.js:50
if (name.indexOf('.') == -1) {
^

TypeError: Cannot read property 'indexOf' of undefined
at API.accessory (C:\Users*\AppData\Roaming\npm\node_modules\homebridge\lib\api.js:50:12)
at Server._loadAccessories (C:\Users*\AppData\Roaming\npm\node_modules\homebridge\lib\server.js:264:42)
at Server.run (C:\Users*\AppData\Roaming\npm\node_modules\homebridge\lib\server.js:86:38)
at module.exports (C:\Users***\AppData\Roaming\npm\node_modules\homebridge\lib\cli.js:40:10)
at Object. (C:\Users*********\AppData\Roaming\npm\node_modules\homebridge\bin\homebridge:17:22)
at Module._compile (module.js:643:30)
at Object.Module._extensions..js (module.js:654:10)
at Module.load (module.js:556:32)
at tryModuleLoad (module.js:499:12)
at Function.Module._load (module.js:491:3)

here its my config.json

{
"bridge": {
"name": "Homebridge",
"username": "CC:22:3D:E3:CE:30",
"port": 53892,
"pin": "031-45-154"
},

"description": "This is an example configuration file with one fake accessory and one fake platform. You can use this as a template for creating your own configuration file containing devices you actually own.",

"accessories": [{}],

"platforms": [{
"platform": "cmdSwitch2",
"name": "CMD Switch",
"switches": [{
"name": "PS4",
"on_cmd": "ps4-waker",
"off_cmd": "ps4-waker standby",
"state_cmd": "ps4-waker search | grep -i '200Ok'",
"polling": true,
"interval": 5,
"manufacturer": "Sony Corporation",
"model": "CUH-1115A",
"serial": "XXXXXXXXXXX"
}]
}]

[theloading123]

ps: when i remove cmdswitch off, homebridge starts normally