Inscription à un événement

Hello,
I am looking for how to allow registration for an event to anyone who wishes to register without having to create an account or authenticate.
Attached is the message I currently have.
You must authenticate yourself to register for this event.
Thank you in advance for your help
cordially

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Bonjour,
Je cherche comment permettre une inscription à un événement à toute la personne qui souhaite s'inscrire sans être obligé de créer un compte voir s’authentifier.
Ci-joint le message que j'ai actuellement.
Vous devez vous authentifier pour vous inscrire à cet événement.
Merci par avance pour votre aide
Cordialement
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Hi,
you write about an attachment which is not attached!

How you want to know, who will attend an event, if this person is not identifiying himself?
There are possibilities or with form to contact or e.g. with breezingforms (you can search in this forum).
But then you have to count manually, the system counting the attendees won't work!
Perhaps it is possible for you to create an easier way to registrate for the joomla account. I can understand, as more you want to know to registrate as less someone will registrate. (as default you only need: name, email and confirmation of the email)