Silvercrest SMART Swich cannot be conneced to a group

Ok, so my bad sorry, this device is not powered, so its realy a switch.

I have found the DDF for this device https://github.com/dresden-elektronik/deconz-rest-plugin/blob/master/devices/tuya/_TZ3000_rco1yzb1_switch.json

And this DDF don’t have group part, can you try this one

{
  "schema": "devcap1.schema.json",
  "manufacturername": "_TZ3000_rco1yzb1",
  "modelid": "TS004F",
  "product": "TS004F",
  "sleeper": true,
  "status": "Gold",
  "subdevices": [
    {
      "type": "$TYPE_SWITCH",
      "restapi": "/sensors",
      "uuid": [
        "$address.ext",
        "0x01",
        "0x0006"
      ],
      "items": [
        {
          "name": "attr/id"
        },
        {
          "name": "attr/lastannounced"
        },
        {
          "name": "attr/lastseen"
        },
        {
          "name": "attr/manufacturername"
        },
        {
          "name": "attr/modelid"
        },
        {
          "name": "attr/name"
        },
        {
          "name": "attr/swversion"
        },
        {
          "name": "attr/type"
        },
        {
          "name": "attr/uniqueid"
        },
        {
          "name": "config/on"
        },
        {
          "name": "config/reachable"
        },
        {
            "name": "config/group",
            "default": "auto"
        },
        {
          "name": "state/buttonevent"
        },
        {
          "name": "config/battery",
          "awake": true,
          "parse": {
            "at": "0x0021",
            "cl": "0x0001",
            "ep": 1,
            "eval": "Item.val = Attr.val / 2;",
            "fn": "zcl"
          }
        },
        {
          "name": "state/lastupdated"
        }
      ]
    }
  ],
  "bindings": [
    {
      "bind": "unicast",
      "src.ep": 1,
      "cl": "0x0001",
      "report": [
        {
          "at": "0x0021",
          "dt": "0x20",
          "min": 60,
          "max": 3600,
          "change": "0x00000001"
        }
      ]
    },
    {
      "bind": "groupcast",
      "src.ep": 1,
      "cl": "0x0006",
      "config.group": 0
    },
    {
      "bind": "groupcast",
      "src.ep": 1,
      "cl": "0x0008",
      "config.group": 0
    },
  ]
}

You can replace it, edit it, or create a new one in the user folder then restart deconz.

All DDF provided directly with deCONZ typically reside in /usr/share/deCONZ/devices/ on a Linux system and are loaded first. However, files residing in the home directory of the user running deCONZ (e.g. /home/<DECONZUSER>/.local/share/dresden-elektronik/deCONZ/devices) will override the pre-packaged files to allow users to amend and keep their own files if desired.