[web2py] i get 'server error'

[yashar]

this is in controller:

@auth.requires_login()
def check_DN_owning_email():
    query = (db.DN_table.state == request.vars.link) & (db.DN_table.user_id 
== auth.user_id)
    row = db(query).select().first()
    if row :
        row.update_record(state='Confirmed')
        response.flash = T('Now you can renew your account')
    else:
        response.flash = T('Confirmation string mismatch')
    redirect('default','my_panel')

there is no view....

it updates the record, but return 'server error' and this is in shell after 
running:

ERROR:Rocket.Errors.Thread-8:Traceback (most recent call last):

  File "/home/yashar/Documents/web2py/gluon/rocket.py", line 1302, in run
    self.run_app(conn)

  File "/home/yashar/Documents/web2py/gluon/rocket.py", line 2003, in 
run_app
    output = self.app(environ, self.start_response)

  File "/home/yashar/Documents/web2py/gluon/main.py", line 693, in 
app_with_logging
    ret[0] = wsgiapp(environ, responder2)

  File "/home/yashar/Documents/web2py/gluon/main.py", line 617, in wsgibase
    http_response, request, environ, ticket)

  File "/home/yashar/Documents/web2py/gluon/rewrite.py", line 202, in 
try_rewrite_on_error
    status = int(str(http_response.status).split()[0])

ValueError: invalid literal for int() with base 10: 'my_panel'


is this a bug? or i did something wrong?

--