Hi There

I am a really novice using dokku and follow this tutorial :
https://auth0.com/blog/hosting-applications-using-digitalocean-and-dokku/

But even the basic steps did not work to reach my simple HELLO WORLD application

I have this status :

dokku proxy:ports dokkuexp
—–> Port mappings for dokkuexp
—–> scheme host port container port
http 58270 5000

But trying to reach my app in both ways give me a The site can’t be reached :

http://MYdropletip:5000
or
http://goodfy-dokku-at-docean:5000 and even

http://goodfy-dokku-at-docean:58270

I have checked instructions regarding uff .. but even with status root@goodfy-dokku-at-docean:~# sudo ufw status
Status: active

To Action From

22/tcp ALLOW Anywhere
80/tcp ALLOW Anywhere
443/tcp ALLOW Anywhere
2375/tcp ALLOW Anywhere
2376/tcp ALLOW Anywhere
5000/tcp ALLOW Anywhere
22/tcp (v6) ALLOW Anywhere (v6)
80/tcp (v6) ALLOW Anywhere (v6)
443/tcp (v6) ALLOW Anywhere (v6)
2375/tcp (v6) ALLOW Anywhere (v6)
2376/tcp (v6) ALLOW Anywhere (v6)
5000/tcp (v6) ALLOW Anywhere (v6)

Things do not work …
What do I missing ?
Thanks in advance