confirmation emails to buyers

rowers/forms.py

@@ -732,7 +732,10 @@ class PlanSelectForm(forms.Form):
                 "price","clubsize","shortname"
             )
         if rower:
-            amount = rower.paidplan.price
+            try:
+                amount = rower.paidplan.price
+            except AttributeError:
+                amount = 0
             self.fields['plan'].queryset = PaidPlan.objects.filter(
                 paymentprocessor=rower.paymentprocessor
                 ).exclude(