Unexpected container starts every night even after stopped, removed and deleted

I recently started my first server using docker CE.I have it as a NAS and media server but every night, I find an unexpected container running. Every night I kill the container, remove it and remove the image but the following night it is there again.

I am using docker compose to start all of my containers, but I have absolutely no reference to this container/image in my compose yml file.

The container is jritter/first and on docker hub I cannot find any information about what it even is let alone how it is being started every night.

Please help