Upgrade 4.4.3 to 4.5.2 + fix member login

This is a urgent task - do not accept unless you think you can finish within 8 hours from now. It MUST be working tomorrow, norwegian time and that is about 8 hours away from now. No exception. My client have a website that operates a very plain template in WordPress 4.4.3. It has just a few plugins, the major one is the member-plugin (wp-members). It is supposed to stop the page from showing and ask for one username/password. I have restored a older backup where this works and I have taken a screenshot of how it looks when it works. For all sub-items of the "Takst"-submenu only, it should show a login-box instead of the content on the page. Pretty basic. See the attached images for example. Member-plugin is this one: [login to view URL] Your task is to bring back the member-area protection as show in the images in same/similar fashion, in the updated version where member-area doesn't work (it currently shows the content withinout asking for password). YOU MIGTH NEED TO KNOW PHP-coding IN ORDER TO FIX THIS! One you are logged in on a page, you shall not be asked for password again. The username and password is grabbed from normal wp-user-database and does NOT use the single page protect function that WordPress has to protect just one single page. The password protection should be applied to all pages in this "subdir" or menu-level. Rest of the task is to upgrade the site to work with latest WP and make sure plugins and so on works correctly. There is a imagegallery, a voting-plugin, contact-form, Gravity-forms and a blog to mention the most important ones. Some of the plugins show, but doesn't appear under Plugins. Please fix it so that member-area is not overwritten by later upgrades. You can use other plugins than the member-plugin I have choosen, but it must look just as good when showing the login form. When you login, you see the content instead of the login box on that same page. Please calculate in some work to fix any issues. I just want it to work and the only issue I have seen is with plugins and the most important one is the password-protection.