why EvtBadHeaderError appears when reading an .evt file in obspy - python

I am using a command called read on the Obspy library in Python. I am just trying to read a .evt file. However the following error appears:
EvtBadHeaderError: Bad Frame values
And my code is:
from obspy import readdt = read('evtfile.evt',format='KINEMETRICS_EVT')
I searched for it and this error comes from this EvtBadHeaderError webpage. I tried to contact someone on the obspy forum page but i didn't get any answer. So i am just trying to find out where this error comes from. So i am trying to "decode" this error but it is a little bit difficult for me to understand. I would appreciate if someone could explain me why this is happening. I dont't know if it is good that i ask this question here but it is about my master and i really need to find why this error appears. Thanks!!

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