Remove entity without unique id

i see an entity as switch in my default overview dashboard , but there is no entry in my configuration.yml , and also i am unable to delete this , can anyone please help me

Hi, welcome to the forum!

Check your devices / entities in the settings (side panel)

this is my dashboard , please help

Click this:

Open your Home Assistant instance and show your devices.

there is no entry there as well , i am unable to figure out how it came up

Try

Nothing found here as well

Make sure there are not filters active and don’t put anything in the search field.
The last column shows the state.

Go to your dashboard and click on the entity. In the pop-up card what do you see when you click on the three dots icon in the top corner?

Thanks , i tried all your ways and restarted my home assistant removed power plug and started again , now it’s perfect with no useless entity