Problems parse the xml files

[blackfa1con]

Got this while using the resign python script :

Traceback (most recent call last):
File "resign.py", line 33, in
xmldoc = minidom.parse(mac_permissions)
File "/usr/lib/python3.8/xml/dom/minidom.py", line 1959, in parse
return expatbuilder.parse(file)
File "/usr/lib/python3.8/xml/dom/expatbuilder.py", line 913, in parse
result = builder.parseFile(file)
File "/usr/lib/python3.8/xml/dom/expatbuilder.py", line 204, in parseFile
buffer = file.read(16*1024)
AttributeError: 'NoneType' object has no attribute 'read'

Where is the problem ?