i found that every time when my PC hang, i press reset button, after i restart it, the ZOPE is gone can not view the ZOPE and the following is my python (start web site) which showing the errors type:-

    asynchat.async_chat.handle_error (self)
File "C:\Program Files\WebSite\ZServer\medusa\asyncore.py", line 357, in handl
e_error
    self.close()
File "C:\Program Files\WebSite\ZServer\HTTPServer.py", line 356, in close
    p.more() # free up resources held by producer
File "C:\Program Files\WebSite\ZServer\Producers.py", line 108, in more
    getattr(self.logger, self.method)(self.bytes)
File "C:\Program Files\WebSite\ZServer\medusa\http_server.py", line 273, in lo
g
    ' - - [%s] "%s" %d %d "%s" "%s"\n' % (
File "C:\Program Files\WebSite\ZServer\medusa\logger.py", line 247, in log
    self.logger.log ('%s:%s' % (ip, message))
File "C:\Program Files\WebSite\ZServer\medusa\logger.py", line 77, in log
    self.write (message)
File "C:\Program Files\WebSite\ZServer\medusa\logger.py", line 53, in write
    self.maybe_flush()
File "C:\Program Files\WebSite\ZServer\medusa\logger.py", line 65, in maybe_fl
ush
    self.file.flush()
IOError: [Errno 9] Bad file descriptor