I'v been testing for a while now, and I've come to the conclusion that Cartpauj PM is creating this issue. I have two users on my site for testing the PM system, one is an Admin and another is a Subscriber. Whenever I try to log into my Subscriber user to check the messages, it logs me out as soon as I refresh the page. If I deactivate Cartpauj PM, I can log in and navigate around fine. When Cartpauj PM is activated, and I clear my cookies, I can navigate the site, but if I go into the Message Box and then try to hit refresh or click on another page I immediately get logged out. Is there anyway I can fix this issue?
Note: I'm also using a plugin to restrict visitors from accessing the site, it directs everyone to the login form. I've tried 3 different plugins for this, but the issue was resolved only when I deactivated Cartpauj PM.