HA not starting. Getting "pam_unix(sudo:auth): auth could not identify password for [homeassistant]"

I did a configuration.yaml change to my Hassbian on RPi3, checked out as a valid config, restarted … now i don’t get HA back.

When i do a sudo systemctl status [email protected] -l i get

Mar 07 18:54:09 hassbian hass[598]: [158B blob data]
Mar 07 18:54:40 hassbian hass[598]: % Total % Received % Xferd Average Speed Time Time Time Current
Mar 07 18:54:40 hassbian hass[598]: Dload Upload Total Spent Left Speed
Mar 07 18:54:40 hassbian hass[598]: [158B blob data]
Mar 07 18:55:03 hassbian hass[598]: sudo: no tty present and no askpass program specified
Mar 07 18:55:03 hassbian sudo[2649]: pam_unix(sudo:auth): conversation failed
Mar 07 18:55:03 hassbian sudo[2649]: pam_unix(sudo:auth): auth could not identify password for [homeassistant]
Mar 07 18:55:11 hassbian hass[598]: % Total % Received % Xferd Average Speed Time Time Time Current
Mar 07 18:55:11 hassbian hass[598]: Dload Upload Total Spent Left Speed
Mar 07 18:55:11 hassbian hass[598]: [158B blob data]

I already rebooted the Pi: didn’t help.

I can’t think of something i did that would lead to this. I don’t have much linux knowledge yet. Anybody any idea?

Don’t know what happened, but seems to work again somehow :-|.