Add missing argument.

ticdesk_org/views.py

@@ -145,7 +145,7 @@ def map(request):
 
     return render(request, 'ticdesk_org/map.html', context)
 
-def add_guardian(request):
+def add_guardian(request, uid):
     context = {}
 
     # Do not allow not logged-in users