New installation with Docker and OMV and Im getting an error "Trusted domains" how do I fix it?.

Try searching for trusted domains! Number one referenced topic on the forum.

Also have a look at the documentation, where it explains this setting as well as how to change it both using occ and by hand.

Thanks but I need a step by step simple instructions, maybe using putty to get this done. The online info looks like Klingon to me.