I can't login to shift

I cannot get into the shift station in the pre sequel game. I made sure I was online with the PS4 before entering the game. I try to sign in to Shift, but it says I already haver an account with my email. I used this in Borderlands 1 and 2. I was able to change the password for shift no problem, but it still won’t let me login. I get the same message; failure, already have an account . So when I go into the game to the shift center it says go back to the main page and login. Argh! I notice when the game boots it says i am authenticated for shift. Whats wrong???

I’m having the same problem with borderlands 2 on the ps4.