How can I find the cause of these login errors?

Configuration
1

I have this login errors in the console; The log is not helpfull at all; where can I find more information ?

Logger: homeassistant.components.command_line.utils
Source: components/command_line/utils.py:56
integration: Command Line (documentation, issues)
First occurred: 17:52:27 (68 occurrences)
Last logged: 18:25:57

Command failed (with return code 2): grep -c 'Login attempt' /home/hass/.homeassistant/home-assistant.log
2

because I am running in docker the solution was:

Check your configuration.yaml (or wherever you defined the command_line sensor) and update the path from:

command: "grep -c 'Login attempt' /home/hass/.homeassistant/home-assistant.log"

To:

command: "grep -c 'Login attempt' /config/home-assistant.log"