i have this error

[fekirinedjallal1]

Processing target: target.com
Traceback (most recent call last):
File "cve-2023-3519.py", line 58, in
main(host, shellcode)
File "cve-2023-3519.py", line 33, in main
assert len(shellcode)<=RETURN_OFFSET-32, "payload is too long. Try a shorter URL"
AssertionError: payload is too long. Try a shorter URL
Processing target: target.com
^XTraceback (most recent call last):
File "cve-2023-3519.py", line 58, in
main(host, shellcode)
File "cve-2023-3519.py", line 33, in main
assert len(shellcode)<=RETURN_OFFSET-32, "payload is too long. Try a shorter URL"
AssertionError: payload is too long. Try a shorter URL