Nextcloud SMS : How to configure?

Hello everybody,

It seems to be obvious but I can’t configure Nextcloud SMS.
I installed the last Nextcloud sms on the server and the app on an android phone.
I want to add a Nextcloud sms connection.
what is the address? https://myserver/nextcloud/ or https://myserver/nextcloud/index.php or something else?
I don’t know for the moment.
Could you please helpp me?