Unable to install ubuntu server

I am unable to install ubuntu server 18.04 LTS on my pc. the hardware is a intel i3 8100 processor and a b360 motherboard. I had ubuntu server running until i changed the fstab file that’s when i started gettings errors. I formatted the disk and tried to reinstall it and that is where i am stuck at.

I would really appreciate it if somebody could help me

This site is not setup for support type questions. Please look at https://community.ubuntu.com/t/finding-help/712 for places which are setup for providing help such as IRC, Ask Ubuntu, Launchpad Answers, Ubuntu forums…

I’ve moved this to the https://community.ubuntu.com/c/support-help-requests category because this site isn’t designed to take tech support questions. Sorry. I’d recommend using one of the official support channels listed on the https://community.ubuntu.com/t/finding-help/712 page