Password Page Protection

Hi, I’m trying to prepare a login page for customers who by entering a certain password end up on a certain page.
when I create a page and then protect it with a password, I enter the password in the appropriate space in its settings, but as soon as I go back to the settings it’s as if I had never entered the password and it always leaves me with the message “edit the password page” , in utilities, but I don’t understand what I have to change…

Thanks for the help


Here is my site Read-Only: LINK
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