How to run C program in Atom?

Today I started to use Atom and when I try to run a C program the Atom is sending me this message:image
Why can’t I run C code from Atom and how can I fix it?
Thanks in advance to those who will answer!

Because I can put only one image in a post so I’ll put there the other error:

I already installed these packages:

Does someone know and can help plz?