Error !

KeyError: u'site'

<%inherit file="site" /> <%def name="main_content()"> <% myparser = None myparser_note = None if object.val('noteslist'):
/srv/dd-web01/limecms/ferd2015/ferd201501/lib/python2.7/site-packages/Mako-1.0.7-py2.7.egg/mako/template.py, line 397:
del sys.modules[self.module_id]
/srv/dd-web01/limecms/ferd2015/ferd201501/lib/python2.7/site-packages/Mako-1.0.7-py2.7.egg/mako/template.py, line 338:
module = self._compile_from_file(path, filename)
/srv/dd-web01/limecms/ferd2015/ferd201501/lib/python2.7/site-packages/Mako-1.0.7-py2.7.egg/mako/lookup.py, line 323:
**self.template_args)
/srv/dd-web01/limecms/ferd2015/ferd201501/lib/python2.7/site-packages/Mako-1.0.7-py2.7.egg/mako/lookup.py, line 258:
return self._load(srcfile, uri)
/srv/dd-web01/limecms/ferd2015/ferd201501/lib/python2.7/site-packages/Mako-1.0.7-py2.7.egg/mako/runtime.py, line 802:
return lookup.get_template(uri)
/srv/dd-web01/limecms/ferd2015/ferd201501/lib/python2.7/site-packages/Mako-1.0.7-py2.7.egg/mako/runtime.py, line 771:
template = _lookup_template(context, uri, calling_uri)
templates/ferd/spreadsheet, line 1:
<%inherit file="site" />
/srv/dd-web01/limecms/ferd2015/ferd201501/lib/python2.7/site-packages/Mako-1.0.7-py2.7.egg/mako/runtime.py, line 814:
ret = template.module._mako_inherit(template, context)
/srv/dd-web01/limecms/ferd2015/ferd201501/lib/python2.7/site-packages/Mako-1.0.7-py2.7.egg/mako/runtime.py, line 872:
(inherit, lclcontext) = _populate_self_namespace(context, tmpl)
/srv/dd-web01/limecms/ferd2015/ferd201501/lib/python2.7/site-packages/Mako-1.0.7-py2.7.egg/mako/runtime.py, line 838:
**_kwargs_for_callable(callable_, data))
/srv/dd-web01/limecms/ferd2015/ferd201501/lib/python2.7/site-packages/Mako-1.0.7-py2.7.egg/mako/template.py, line 462:
return runtime._render(self, self.callable_, args, data)
/var/limecms/ferd2015/ferd201501/ferd2015-inst/Products/LimeTemplate/LimeTemplate.py, line 667:
html = mytemplate.render(object=object, site=site, extra=extra.get('kwargs', None), **extra)