Error !

KeyError: 'q'

<%def name="main_content()"> <% clean_srch = site.LimeAPI.smart_unicode(site.stripHtml(site.REQUEST['q'])) srch = '*' + clean_srch + '*' if srch == '**': srch = ''
/srv/limesevendata/limecms/digiplexcom/digiplexcom01/local/lib/python2.7/site-packages/Zope2-2.13.22-py2.7.egg/ZPublisher/HTTPRequest.py, line 1372:
raise KeyError, key
templates/digiplex/search_result, line 5:
<%
templates/digiplex/site, line 236:
${self.main_content()}
/srv/limesevendata/limecms/digiplexcom/digiplexcom01/local/lib/python2.7/site-packages/Mako-1.0.1-py2.7.egg/mako/runtime.py, line 860:
callable_(context, *args, **kwargs)
/srv/limesevendata/limecms/digiplexcom/digiplexcom01/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/limesevendata/limecms/digiplexcom/digiplexcom01/local/lib/python2.7/site-packages/Mako-1.0.1-py2.7.egg/mako/runtime.py, line 803:
**_kwargs_for_callable(callable_, data))
/srv/limesevendata/limecms/digiplexcom/digiplexcom01/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/digiplexcom/digiplexcom01/digiplexcom-inst/Products/LimeTemplate/LimeTemplate.py, line 666:
html = mytemplate.render(object=object, site=site, extra=extra.get('kwargs', None), **extra)