ENERGY CAP: did you move any capacity equipment back to your inventory? Did you buy the Professor Switch System & not fully set up your 2nd camp variation? If you bought it, you now can switch from a DAY MODE & NIGHT MODE.
SIGN IN: I guess I don't understand why you can't sign in to Pixel Fed on mobile. I only have mobile devices at this time & can sign in just fine. I even have the Puffin browser on my phone, so if I feel like being annoyed, I can play the browser version of the game...
Please specify what happens when you try to login.