help!! error in command

[plolsuper]

Traceback (most recent call last):
File "a2sv.py", line 352, in
targetIP = socket.gethostbyname(target)
socket.gaierror: [Errno -2] Name or service not known

when I put the python command a2sv.py -t and the target puts me this

[hahwul]

Thank you for question.
Is the address of the target an actual ip or domain?

"Name or service not known" is an error that occurs when no ip or domain is found.
Please check target address :)