Saml configuration problem


I am currently setting up the SAML connection on my instance.
Once all the fields are filled in I can’t log out and it always displays the connection of the same user.
I tried to change the browser, but it shows me a blank page.

In the application, I have indicated the connection and disconnection url and the x509 certificate.
Should I also generate a certificate on my server?

Thank you for your help with this problem. :pray: