keyerror test multiflex

rowers/views.py

@@ -3603,6 +3603,10 @@ def multiflex_view(request,userid=0,
         except ValueError:
             df['groupval'] =  groups.mean()[groupby].fillna(value=0)
             groupcols = df['groupval']
+        except KeyError:
+            messages.error(request,'Data selection error')
+            url = reverse(user_multiflex_select)
+            return HttpResponseRedirect(url)            
     else:
         try:
             df['groupval'] = [x.strftime("%Y-%m-%d") for x in groups.min()[groupby]]