necpp collinear antenna error

antenna.nec

CM --- NEC2 Input File created or edited by xnec2c 3.5 ---
CM GW     2    25  0.00000E+00  6.90000E-02  4.00000E-03  0.00000E+00  6.90000E-02 -4.00000E-03  1.50000E-03
CM   tag  segs   x1           y1           z1           x2           y2          z2
CE 
GW     1     1   0.00000E+00  5.30000E-02 -4.00000E-03  0.00000E+00  5.30000E-02  4.00000E-03  7.50000E-04
GW     3    25   0.00000E+00  0.00000E+00  4.00000E-03  0.00000E+00  5.30000E-02  4.00000E-03  7.50000E-04
GW     4    15   0.00000E+00  5.30000E-02  4.00000E-03  0.00000E+00  6.90000E-02  4.00000E-03  7.50000E-04
GW     5    15   0.00000E+00  0.00000E+00 -4.00000E-03  0.00000E+00  5.30000E-02 -4.00000E-03  7.50000E-04
GW     6    15   0.00000E+00  5.30000E-02 -4.00000E-03  0.00000E+00  6.90000E-02 -4.00000E-03  7.50000E-04
GA    10    35   4.00000E-03  9.00000E+01  2.70000E+02  7.50000E-04  1.38921E-01  0.00000E+00  0.00000E+00
GM     0     0   0.00000E+00  0.00000E+00  2.70000E+02  0.00000E+00  6.90000E-02  0.00000E+00  1.00000E+01
GW    15    80   0.00000E+00  0.00000E+00  4.00000E-03  0.00000E+00  0.00000E+00  1.55000E-01  7.50000E-04
GW    16    80   0.00000E+00  0.00000E+00 -4.00000E-03  0.00000E+00  0.00000E+00 -1.55000E-01  7.50000E-04
GE     0     0   0.00000E+00  0.00000E+00  0.00000E+00  0.00000E+00  0.00000E+00  0.00000E+00  0.00000E+00
EX     0     1     1      0  1.00000E-03  0.00000E+00  0.00000E+00  0.00000E+00  0.00000E+00  0.00000E+00
FR     0    51     0      0  1.02000E+03  2.80000E+00  1.16000E+03  0.00000E+00  0.00000E+00  0.00000E+00
NH     0     1     1      1  0.00000E+00  0.00000E+00  0.00000E+00  0.00000E+00  0.00000E+00  0.00000E+00
NE     0    10     1     10 -1.35000E+00  0.00000E+00 -1.35000E+00  3.00000E-01  0.00000E+00  3.00000E-01
RP     0    19    37   1000  0.00000E+00  0.00000E+00  1.00000E+01  1.00000E+01  0.00000E+00  0.00000E+00
EN     0     0     0      0  0.00000E+00  0.00000E+00  0.00000E+00  0.00000E+00  0.00000E+00  0.00000E+00

necpp-collinear.py

import numpy as np
import PyNEC
from scipy.constants import c


def make_collinear(nec, f0=1090e6, wdia=1.5e-3):
    """Originally designed for ADS-B by PY4ZBZ
    
    http://www.qsl.net/py4zbz/adsb.htm#e
    
    """
    geo = nec.get_geometry()
    
    l = c/f0
    
    wrad = wdia/2
    arm_k = 0.555
    stub_k = 0.2533
    tap_k = 0.758

    gap_len = 8e-3 # fix stub gap at 8mm
    arm_len = l * arm_k
    stub_len = l * stub_k
    
    tap_y = stub_len * tap_k
    
    # load element
    geo.wire(1, 5,  0, tap_y, -gap_len/2, 0, tap_y, gap_len/2, wrad, 1, 1)
        
    # end of stub
    geo.arc(3, 25, gap_len/2, 90, 270, wrad)
    geo.move(0, 0, 270, 0, stub_len, 0, 3, 0, 0)

    # long arms of stub
    geo.wire(5, 35, 0, 0, gap_len/2, 0, tap_y, gap_len/2, wrad, 1, 1)
    geo.wire(6, 35, 0, 0, -gap_len/2, 0, tap_y, -gap_len/2, wrad, 1, 1)
    
    # short arms of stub
    geo.wire(10, 25, 0, tap_y, -gap_len/2, 0, stub_len, -gap_len/2, wrad, 1, 1)
    geo.wire(11, 25, 0, tap_y, gap_len/2, 0, stub_len, gap_len/2, wrad, 1, 1)
    
    # active elements
    geo.wire(17, 150, 0, 0, gap_len/2, 0, 0, arm_len + (gap_len/2), wrad, 1, 1)
    geo.wire(18, 150, 0, 0, -gap_len/2, 0, 0, -arm_len - (gap_len/2), wrad, 1, 1)
    
    geo.geometry_complete(0)
    
    return geo

nec = PyNEC.nec_context()
geo = make_collinear(nec)
print(geo)