diff --git a/apiserver/apiserver/api/models.py b/apiserver/apiserver/api/models.py
index d0ee82c..12adc00 100644
--- a/apiserver/apiserver/api/models.py
+++ b/apiserver/apiserver/api/models.py
@@ -89,7 +89,7 @@ class PayPalHint(models.Model):
     user = models.ForeignKey(User, related_name='paypal_hints', blank=True, null=True, on_delete=models.SET_NULL)
 
     account = models.CharField(unique=True, max_length=13)
-    member_id = models.IntegerField()
+    member_id = models.IntegerField(null=True)
 
     history = HistoricalRecords()
 
diff --git a/apiserver/apiserver/api/utils_paypal.py b/apiserver/apiserver/api/utils_paypal.py
index 5452a71..cf128cc 100644
--- a/apiserver/apiserver/api/utils_paypal.py
+++ b/apiserver/apiserver/api/utils_paypal.py
@@ -330,14 +330,14 @@ def process_paypal_ipn(data):
 
     try:
         user = hints.get(account=data['payer_id']).user
-    except hints.DoesNotExist:
+    except models.PayPalHint.DoesNotExist:
         logger.info('IPN - No PayPalHint found for %s', data['payer_id'])
 
     if not user and 'member' in custom_json:
         member_id = custom_json['member']
         try:
             user = members.get(id=member_id).user
-        except members.DoesNotExist:
+        except models.Member.DoesNotExist:
             pass
 
     if not user: