Shift Display Name?

I started up Borderlands 2 and got a message I need to create a shift display name, but no matter what I type in it tells me that there is a internal error setting the display name. I am unable to play the game because of this. What is the way to fix this?

Never seen that before. Can you set it via https://shift.gearboxsoftware.com/account at all?

It’s fixed! Thanks anyway.

How did you manage to resolve the issue?