I see you have a WordPress site up. You also have only 512MB of memory.
Although I have seen other members mention Flarum can be installed with less than 1GB memory; I have not ever attempted it.
I cannot install Flarum for you.
I have removed the SSH key I created so that I could connect, I have also deleted the email you sent me with your cPanel credentials.
My apologies that I could not assist you.
Notes for anyone else that may have insight to help you.
GoDaddy - Cpanel
512 MB memory
You can try using Free Flarum in the interim.