Problem with access to my retro

Hey I decided to go through the process of moving my retro to a vps i set up myself and is the first time i have attempted to do so but have ran into a problem

The whole thing works localhost and of course on any PC in my house. But the problem lies no one else can access my website
They keep getting This site cannot be reached (domain URL) took to long to respond

i though it might have been a problem with port forwarding which i was not sure as i thought a vps port forwards itself but went ahead and did it anyway to make sure im sure i did it correctly as it says the ports are open when i search them on can you see me.

Im not great with things such as this so dont hate if it something easy https://devbest.com/styles/default/x...es/biggrin.png but would any one be able to point me in the right direction on how to fix it or tell me what the problem is?.

Mabe you could think for 3 seconds and your brain would probably figure out the logical thing which is, visiting the IP of your VPS and checking if your cheeky ass retro appears, if it does then the problem is your cheeky ass Domain.

Thankyou for the reply i appreciate it and no it does not appear it says page is not working. And i apologise if it seems easy. I have put thought into it and tried different things and searched google i would not post without at least trying, I am new to this sort of stuff im doing it for fun and to learn as i go :)