Trying to compute a RTW on the *A milage calculator web site.

Leg 5 SFO-AKL NZ 7 on 24 Oct
Leg 6 AKL-SYD NZ 703 on 26 Oct.

Error message:
Impossible connection to leg 6.

Can anyone tell me what is wrong with leg 6?
Or is the calculator fouled up???

Thanks,

Shofar