ValueError: substring not found

[Guizmo56]

Hello,
I got an error: ValueError: substring not found. I'm not used to Python or any other language ^^. Sorry if I miss something during the installation or if there is a problem with the program.

I share what I wrote on the command prompt to get this error/

C:\Users\xxx\Desktop>itunes_dl.py https://music.apple.com/us/album/folklore/1524801260 n
Traceback (most recent call last):
File "C:\Users\xxx\Desktop\itunes_dl.py", line 323, in
main(sys.argv[1], sys.argv[2])
File "C:\Users\xxx\Desktop\itunes_dl.py", line 237, in main
schema_start_index = album_res.index(schema_start_string)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
ValueError: substring not found