Giovanni - I got three warnings as shown below. All are harmless - your model works fine. You can eliminate the first warning by changing the SW line from

SW 1 9 10 to SW 1 9 0

WARNING : JOUT WAS SET TO NONZERO BUT FILE NAME WAS NOT SPECIFIED THROUGH @ LINES JOUT WAS SET TO ZERO TO AVOID WRITING DATA TO UNSAVED SCRATCH FILE

===> Warning all conduits connecting to Junction 1 lie above
the Junction invert.
===> WARNING !!! THE INVERT OF CONDUIT 0 LIES ABOVE THE CROWN
OF ALL CONDUITS AT JUNCTION 1

Both the junction and conduit warnings are artifacts of older versions of SWMM, although they can still help point out input problems in some cases. It's still good practice not to have a junction invert below all the conduit inverts, but that doesn't apply in the case of a pump or orifice connection.

Good luck with your model.
Regards,
Mitch Heineman
HeinemanM@CDM.COM