exploit stop

[italy2010]

Hello
when i use Heartleak exploit, it stop working afther a 3040 min or 34 horus...
it show me this error:

Traceback (most recent call last):
File "C:\Documents and Settings\Administrator\lek.py", line 235, in
main()
File "C:\Documents and Settings\Administrator\lek.py", line 228, in main
monitor(host, port)
File "C:\Documents and Settings\Administrator\lek.py", line 177, in monitor
if target and target.handshake():
File "C:\Documents and Settings\Administrator\lek.py", line 73, in handshake
self.sick.send(self.hello) # send handshake
AttributeError: 'heartleak' object has no attribute 'hello'

i use monitor mode.