Hey, installed cakephp 4.0 and session problem?

cakephp 4.0 installed and set the session and when open in browser first tab it’s works,but when i open second tab on same session it’s throws an error following but i the session. set whay this happens .Auth ->User->User when open third tabs includes the User

can any get this issue.

Can you please share some code to regenerate the issue?

I follow the following steps:-
https://book.cakephp.org/4/en/tutorials-and-examples/cms/authentication.html