Fix error in consumer when camp matching query does not exist.

src/program/consumers.py

@@ -12,6 +12,7 @@ class ScheduleConsumer(JsonWebsocketConsumer):
 
     def connect(self, message, **kwargs):
         camp_slug = message.http_session['campslug']
+        try:
             camp = Camp.objects.get(slug=camp_slug)
             days = list(map(
                 lambda day:
@@ -29,6 +30,8 @@ class ScheduleConsumer(JsonWebsocketConsumer):
                 "days": days,
                 "action": "init"
             })
+        except Camp.DoesNotExist:
+            pass
 
     def raw_receive(self, message, **kwargs):
         content = self.decode_json(message['text'])