Hello,
I'm trying to add guest in my confluence. I have a standard licence so i know i can cause of this page:
https://support.atlassian.com/confluence-cloud/docs/invite-guests-for-external-collaboration/
But when i try to add a guest:

I got this pop up:

I tried to click on the link, but when i arrive on the page i can't see the guest i add:

And if i come back in my user management, the user has this product role:

I've looked through several websites, but I couldn't find a solution to my problem.
Thanks in advance for any help or suggestions!