advanced examples issue

[OocoO]

I tried to run the advanced example-2d/3d multi-material indentation on my computer with python 2.7.15 environment. but got an issue like this:
execfile('launcher.py')

65 simulations left to run.

Running Simulation: id=57, frames = 50

Traceback (most recent call last):
File "", line 1, in
File "launcher.py", line 5, in
db_manager.run_all()
File "classes.py", line 875, in run_all
self.run_next()
File "classes.py", line 856, in run_next
simu.run(work_dir = self.work_dir, abqlauncher = self.abqlauncher)
File "classes.py", line 725, in run
self.preprocess()
File "classes.py", line 666, in preprocess
l = mesh_l)
File "C:\Python27\lib\site-packages\abapy\indentation.py", line 244, in IndentationMesh
U2 = m2.nodes.eval_vectorFunction(disp2)
File "C:\Python27\lib\site-packages\abapy\mesh.py", line 634, in eval_vectorFunction
data1 = FieldOutput(labels = labels, data = data1, dti = dti, dtf = dtf)
File "C:\Python27\lib\site-packages\abapy\postproc.py", line 1569, in init
if data.any(): # data != None
ValueError: The truth value of an array with more than one element is ambiguous. Use a.any() or a.all()

and I also tried to fix the error by changing the line like:
if isinstance(data, array):'
but did not work. which seems that the error did not happen in that line.
Since I have already run the other example successfully, I really want to know what happened there.