Apple AltStore says incorrect Apple ID, what do I do?

[Plazorn]

Hello, I was able to get AltStore on my idevice, I logged in, but when I went to instal Delta, it wanted me to sign in again, so I entered my info, but it said it was incorrect, any advice would be appreciated

 

[AncientBoi]

Been there, Not done that. I get the same message