Hassio MQTT Listing help

Hi there can someone help me ever since HA was upgraded its been made far mor complicated than it used to be
my once flawless setup is now full of none working things and i cant fix.
at this stage im trying to get my mqtt alarm talking to mqtt again but as there is no root access anymore or terminal to run commands nothing will work and cant even see whats going on.

Can someone please tell me a way I can view / subscribe to the built in mosquito server so i can see if its receiving mqtt commands/messages so i can at least try and find the issue

{
  "plain": true,
  "ssl": true,
  "anonymous": true,
  "logins": [],
  "customize": {
    "active": false,
    "folder": "mosquitto"
  },
  "certfile": "fullchain.pem",
  "keyfile": "privkey.pem"
}

**I’m some what disappointed in all the updates lately as they seem to break everything so frustrated **
Thanks in advance for any help

Thanks that’s way better said my English is not so flash lol I too use to use that command via ssh or direct on th PI now nothing works for me.