Ignore RecordDeleted on notification getter

fix #3888

couchpotato/core/notifications/core/main.py

@@ -3,6 +3,7 @@ import threading
 import time
 import traceback
 import uuid
+from CodernityDB.database import RecordDeleted
 
 from couchpotato import get_db
 from couchpotato.api import addApiView, addNonBlockApiView
@@ -270,11 +271,16 @@ class CoreNotifier(Notification):
         if init:
             db = get_db()
 
-            notifications = db.all('notification', with_doc = True)
+            notifications = db.all('notification')
 
             for n in notifications:
-                if n['doc'].get('time') > (time.time() - 604800):
-                    messages.append(n['doc'])
+
+                try:
+                    doc = db.get('id', n.get('_id'))
+                    if doc.get('time') > (time.time() - 604800):
+                        messages.append(doc)
+                except RecordDeleted:
+                    pass
 
         return {
             'success': True,