login fail issue

[danielscai]

this issue accurs when i try to login 3n1b

request url : http://www.3n1b.com/login

trace info:
Traceback (most recent call last):
File "/usr/local/lib/python2.7/dist-packages/tornado/web.py", line 1042, in _execute
getattr(self, self.request.method.lower())(_args, *_kwargs)
File "/srv/www/3n1b.com/handler/user.py", line 274, in post
redirect_path = redirect_path.replace('1001', str(user_college.id))
AttributeError: 'NoneType' object has no attribute 'id'