Error:
File "C:\Users\Tapet\anaconda3\lib\site-packages\freesif\sequentialparser\parsers.py", line 1754, in rdielcor_reader
if nok == 1:
UnboundLocalError: local variable 'nok' referenced before assignment
It seems that variable icoref may be 23 but only icoref==15 or icoref==24 are tested for.