I got an e-mail notification that my primary e-mail for my account had been switched. I did not ask for this, so I got on and it had already sent me another e-mail asking me to verify my original e-mail. I was out of town and away from my PS4, when I returned I turned it back on and tried to connect to the network. I was then prompted to create a new sign in, which was weird. I went halfway through the process before trying to back out and sign in again with my original info. It then kicked me back out and saved my partially filled info from when I logged on first.
Long story short, when I try to log on now it says "cannot sign in using another player's sign-in ID". I have no idea what to do from here. My e-mail sign in hasn't changed, but now I can't log in at all without hitting this road block.