Mistake at the EOC?

The first question of reading 48 (Volume 6, page 61) is answered like this :

A) the Value of the forward is -30.44 (as expressed by spot minus the future)

B) The payment is made from the short to the long ??? How is the long gaining since he was long the contract and the future price is bigger than the spot?

I didn’t find something in the errata. Am I missing something?

other than the fact that it is an off market forward contract - you are missing nothing.