Auto login cefsharp current session expired c#

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I am trying to make a small cefsharp project in c# auto login data fill
in the first page there is a text the email to fill after there is our page for the password and a code that arrives in email
I manage to pass the email page but the second page once the password and the code are filled in and click submit automatically I receive the message current session expired can someone help me with session cookies 

thank you