diff --git a/api/v1/serializers/mixins.py b/api/v1/serializers/mixins.py
index a79ff8e5..451b362a 100644
--- a/api/v1/serializers/mixins.py
+++ b/api/v1/serializers/mixins.py
@@ -145,6 +145,8 @@ class DispatchGalleryMixin(object):
                 )
             if 'images' in gallery:
                 for image in gallery['images']:
+                    if not image.get('img'):
+                        continue
                     if isinstance(image['img'], ImageObject):
                         img = image['img']
                     else:
diff --git a/apps/payment/models.py b/apps/payment/models.py
index 63664693..a11439c4 100644
--- a/apps/payment/models.py
+++ b/apps/payment/models.py
@@ -229,8 +229,8 @@ class Payment(PolymorphicModel):
 
     def save(self, *args, **kwargs):
         if not self.is_paid():
+            amount_data = Payment.calc_amount(payment=self)
             if not self.bonus:
-                amount_data = Payment.calc_amount(payment=self)
                 self.amount = amount_data.get('amount')
             if isinstance(self, SchoolPayment):
                 self.weekdays = amount_data.get('weekdays')