[Zope] The ZOPE is die when the PC shut down not properly.

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 C:\Program Files\WebSite> Can someone tell me how to solve the above problem?