Help needed! HassIO no longer starts

I have hassio running on docker on ubuntu server. Everything was fine until today when I arrived home and I got no response from HA. I did no changes to HA and yesterday everything was fine.
I have a backup on my google drive from yesterday also.

Tried to reinstall by doing curl -sL “https://raw.githubusercontent.com/home-assistant/hassio-installer/master/hassio_install.sh” | bash -s but I get bash: line 135: /etc/hassio.json: Permission denied

What should I do?

Did you check the logs?

Noob question… How do I do that without web gui?

you said you are running on Ubuntu right? So you have full access to the HA config folder where the log is.
/usr/share/hassio/homeassistant/home-assistant.log
and if you don’t know that you probably should not be using this installation method…

Checked the gigantic log. Can’t see anything obvious.

Trial and error: it seems it was trakt integration who was responsible for this! Solved.