Login new user

Hi Newbie here i got a Odroid N2+ four days ago getting my devices into HA all good then i needed to install file editor for configuration yaml would not install getting error tried rebooting several times through out the evening but would not install so decided to switch off power and restart that way now I can’t login at all now checked router for IP and it’s there but when I try getting a 404 not found attaching pictures so tried console and no login there and most commands says error unknown command info & help commands work please help