UnicodeDecodeError

[anselal]

I am using FileHeader with Sublime 3 and I get the following error whenever I try to add a header to any file:

Exception in thread Thread-60:
Traceback (most recent call last):
  File "./python3.3/threading.py", line 901, in _bootstrap_inner
  File "./python3.3/threading.py", line 858, in run
  File "./python3.3/subprocess.py", line 1169, in _readerthread
  File "./python3.3/encodings/cp1253.py", line 23, in decode
UnicodeDecodeError: 'charmap' codec can't decode byte 0x9c in position 1: character maps to <undefined>