Failed to install Ubuntu

Hi guyss, I am a newbie in LinuX. When I first tried to download Linux, the installation for dual booting was successful but then I realised I downloaded the wrong version for the code I am going to run. So, I deleted the partition of Linux and try to install Ubuntu 18.04. During the installation the errors came out. I thought resetting the computer would fix it but after reset, the errors still remains.I attached the error image link below.

https://imgur.com/a/0vjmNT4