The code not work anymore

[Crono03]

Hi man,
i tried this software just to make a meme but it gave me this error:

Traceback (most recent call last):
File "c:\Users\cirel\OneDrive\Desktop\canzone\GreenPass editor.py", line 35, in b45decode
buf = [BASE45_DICT[c] for c in s.strip()]
File "c:\Users\cirel\OneDrive\Desktop\canzone\GreenPass editor.py", line 35, in
buf = [BASE45_DICT[c] for c in s.strip()]
KeyError: '<'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "c:\Users\cirel\OneDrive\Desktop\canzone\GreenPass editor.py", line 61, in
decoded = b45decode(strip)
File "c:\Users\cirel\OneDrive\Desktop\canzone\GreenPass editor.py", line 55, in b45decode
raise ValueError("Invalid base45 string")
ValueError: Invalid base45 string

[M9k]

Hi!
Could you tell me which version of python and on which system you are running it?
Are you using a valid greenpass code, taken from a QR Code?