There is an error when my friends try to enter my published UEFN map

I’m publishing my own map created in UEFN without problems. But when I give the island code to them, they can’t enter while I can.
I’m not in the island creator program, but I can publish maps, I’m not sure why.

Maybe is something related with servers? This is the error:


In the other hand, I also would like to have our private island and play on it without me being connected, only for my friends. Is it possible? The private code doesn’t work for me neither my friends.
Is it possible to mange our own server or something?
Sorry if some if this questions are a little dump, I’m very newbie on this, thank you!

If you’d like friends to be able to play / test an unpublished island then you’ll need to add them to the team / playtest group for the project.

Check out:

for information on collaborating.