Error When Printing Report

Hello I got this error when am trying to print the report:

Traceback (most recent call last):
  File "D:\Users\vlim\workspace\openerp-7.0\openerp\tools\safe_eval.py", line 241, in safe_eval
    return eval(test_expr(expr, _SAFE_OPCODES, mode=mode), globals_dict, locals_dict)
  File "", line 1, in <module>
NameError: name 'line' is not defined
2013-09-11 02:39:02,013 5468 ERROR New openerp.addons.web.http.HttpRequest.dispatch: An error occurred while handling a json request
Traceback (most recent call last):
  File "D:\Users\vlim\workspace\openerp-7.0\openerp\addons\web\http.py", line 276, in dispatch
    r = method(self, **self.params)
  File "D:\Users\vlim\workspace\openerp-7.0\openerp\addons\web\controllers\main.py", line 1707, in index
    cookies={'fileToken': int(token)})
  File "D:\Users\vlim\workspace\openerp-7.0\openerp\addons\web\http.py", line 323, in make_response
    response.set_cookie(k, v)
  File "C:\Python27\lib\site-packages\werkzeug-0.9.1-py2.7.egg\werkzeug\wrappers.py", line 960, in set_cookie
    self.charset))
  File "C:\Python27\lib\site-packages\werkzeug-0.9.1-py2.7.egg\werkzeug\http.py", line 905, in dump_cookie
    value = to_bytes(value, charset)
  File "C:\Python27\lib\site-packages\werkzeug-0.9.1-py2.7.egg\werkzeug\_compat.py", line 106, in to_bytes
    raise TypeError('Expected bytes')
TypeError: Expected bytes
2013-09-11 02:39:02,155 5468 INFO New werkzeug: 127.0.0.1 - - [11/Sep/2013 02:39:02] "POST /web/report HTTP/1.1" 500 -