Error !

ValueError: invalid literal for int() with base 10: '1994-12-30 00:00:00'

<p class="subtitle birthdate">Født: ${site.formatDate(item.val('birthdate'),format='%d.%m.%Y',localized='no')}</p> %endif %if item.val('birthyear') and item.val('birthyear') != 'None': <% today = datetime.datetime.now().year birthyear = int(item.val('birthyear')) age = today - birthyear %> <p class="subtitle birthdate">Alder: ${age}</p>
templates/cricket/functions/partials, line 54:
<%
templates/cricket/club, line 47:
${partials.renderListItemPerson(player, 'player')}
templates/cricket/site, line 114:
${self.main_content()}
/srv/limedevdata01/limecms/cricketforbundet/cricketforbundet01/local/lib/python2.7/site-packages/Mako-1.0.1-py2.7.egg/mako/runtime.py, line 860:
callable_(context, *args, **kwargs)
/srv/limedevdata01/limecms/cricketforbundet/cricketforbundet01/local/lib/python2.7/site-packages/Mako-1.0.1-py2.7.egg/mako/runtime.py, line 835:
_exec_template(inherit, lclcontext, args=args, kwargs=kwargs)
/srv/limedevdata01/limecms/cricketforbundet/cricketforbundet01/local/lib/python2.7/site-packages/Mako-1.0.1-py2.7.egg/mako/runtime.py, line 803:
**_kwargs_for_callable(callable_, data))
/srv/limedevdata01/limecms/cricketforbundet/cricketforbundet01/local/lib/python2.7/site-packages/Mako-1.0.1-py2.7.egg/mako/template.py, line 443:
return runtime._render(self, self.callable_, args, data)
/var/limecms/cricketforbundet/cricketforbundet01/cricketforbundet-inst/Products/LimeTemplate/LimeTemplate.py, line 704:
html = mytemplate.render(object=object, site=site, request=self.REQUEST, extra=extra.get('kwargs', None), **extra)