Error when I try to compile it to .exe

[RootedSK]

Hello,
My Question is very simple, I try many times to convert a output file to .exe with pyinstaller or py2exe but... I have some errors : File "/usr/local/lib/python3.8/dist-packages/PyInstaller/building/build_main.py", line 413, in assemble
priority_scripts.append(self.graph.run_script(script))
File "/usr/local/lib/python3.8/dist-packages/PyInstaller/depend/analysis.py", line 301, in run_script
self._top_script_node = super(PyiModuleGraph, self).run_script(
File "/usr/local/lib/python3.8/dist-packages/PyInstaller/lib/modulegraph/modulegraph.py", line 1390, in run_script
contents = fp.read() + '\n'
File "/usr/lib/python3.8/codecs.py", line 322, in decode
(result, consumed) = self._buffer_decode(data, self.errors, final)
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xf3 in position 1: invalid continuation byte

I think the junkcode injected by the NXCrypt cause some issues.
The other solution I have see is to use an older version of Python but I need ur help and ur opinion about that