PMDG 747 Cargo won't load

[Fspax]

Neither for me. Fs9 and PMDG cargo b744F. Tried with the same name, but doesn't work. Any idea, because it's work perfectly with pmdg B744 model pax.

Thanks for your help

David
I don't know how to send you 3 photos and thanks again for your help.

Are you sure that you have the correct payload model for the freighter?

Thanks for your answer. Yes, the model is from Fpax I tried to used different models, but not one works...
IN fact I received 3 messages and not possible to send you by photo, but I resume those: 1) about Aircraft repair utility (Missing standard declaration in Aircraft.cfg) I chose to Yes Correct this aircraft and fly with it.
2) Successful update - please reload aircraft.
3) Aircraft updated but change not recognize.

And no more response after do it many times, same messages consecutives, and on, and on...

Thanks for your help.