Logs full of "Login attempt or request with invalid authentication"

Hi everyone! I have Home Assistant installed in a K3s cluster but, when i opened the logs, i saw that there were a lot of warnings that said this:

Login attempt or request with invalid authentication from 10.42.1.1 (10.42.1.1). Requested URL: '/api/websocket'.

10.42.1.1 is the ip of the K3s gateway and if i go to /api/websocket it says this:

No WebSocket UPGRADE hdr: None
 Can "Upgrade" only to "WebSocket".

Can anybody help me understand where these requests come from?

I figured out it was my Stream Deck with the Home Assistant addon. It was using a token that no longer existed.