Frigidaire 24 in. PLD2850 Built-in Dishwasher "painful upper arm" Questions

upper arm does not recive any water at all. There is plenty of hot water in the machine it does just not pump it with enough pressure. Is it possible that my pump is faulty just after a year of use or

upper arm of my Frigidaire Professional Series dishwasher came off. I don't know how. The are doesn't look like anything is cracked or broken. When I try to push it back in place, the receiving swivel