Just to clarify what people are saying, the cup is the piece where the bearing balls go that is attached to the frame, right? I didn't touch that at all (not to say that it's not messed up).

So, I guess, I need to disassemble things and then put a piece of 2x4 over it and tap it in with a hammer, right?

That will seemingly create more space, right? Then, I'll definitely need another spacer, right?