Node floating error while using transfo of «magnetic part editor» (Orcad_16.6_Lite)

Hello,

I keep having the same problem with this quite simple simulation.

I edited the transformer with the help of «magnetic part editor».

This is the transfo given by «magnetic part editor»:

* Generated by Magnetic Parts Editor on Mon Mar 28 02:39:54 2016
.subckt 49925UC V_IN1 V_IN2
+ V_OUT11 V_OUT12
+ PARAMS: Np=14 RSp=0.00340928 LIp=4.73106e-006
+ Ns1=10 RSs1=0.00273003 Gap = 0
L_LP NLP V_IN2 {Np}
R_RP NRP NLP {RSp}
L_Leak V_IN1 NRP {LIp}
L_LS1 NLS1 V_OUT12 {Ns1}
R_RS1 NLS1 V_OUT11 {RSs1}
K_K2 L_LP L_LS1 1.0 core_model_K1
.model core_model_K1 AKO:core_model CORE (GAP={Gap})
.model core_model CORE (LEVEL = 3 OD = 30.84 ID = 0 AREA = 6.45 GAP = 0 Br = 1100 Bm = 5000 Hc = 0.175 )
.ends 49925UC

And this is the errors:

This is the circuit I would like to simulate:

Thank you for your help!

Tom