NameError: name 'lib' is not defined

[0xyuliya]

Hi! Do you know what might be causing this error upon executing following command (python 3.12.8):
python3 CVE-2024-6387.py --exploit [ipv4 addr] --port 22

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Author: l0n3m4n / Scanner: @xaitax / PoC: @7etsuo

Exploiting vulnerabilities...
Traceback (most recent call last):
File "/home/kali/Tools/new/CVE-2024-6387/CVE-2024-6387.py", line 221, in
main()
File "/home/kali/Tools/new/CVE-2024-6387/CVE-2024-6387.py", line 216, in main
exploit_vulnerability(targets, port)
File "/home/kali/Tools/new/CVE-2024-6387/CVE-2024-6387.py", line 177, in exploit_vulnerability
result = lib.exploit_vulnerability(targets.encode(), port)
^^^
NameError: name 'lib' is not defined

Many thanks!