Ios 删除tableview单元格崩溃swift

您好，我想删除tableview单元格，出现以下错误

由于未捕获异常“NSInternalInconsistencyException”而终止应用程序，原因：“更新无效：节数无效。”。更新后表视图中包含的节数（4）必须等于更新前表视图中包含的节数（5），加上或减去插入或删除的节数（0插入，0删除）

这是代码

     override func numberOfSectionsInTableView(tableView: UITableView) -> Int {

      return sectionTitle.count
    }

        override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {

          let sTitle = sectionTitle[section] as? String
          let sectionAnimals = dict.objectForKey(sTitle!) as! NSArray
          print(sectionAnimals)
          return sectionAnimals.count

     }

         override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
                    let sTitle = sectionTitle.objectAtIndex(indexPath.section) as! NSString
        let sectionAnimals = dict.objectForKey(sTitle)
        let animal = sectionAnimals!.objectAtIndex(indexPath.row) as! NSString
        cell.video_name.text = animal as String

        let sectionAnimals1 = dict1.objectForKey(sTitle)
        let animal1 = sectionAnimals1!.objectAtIndex(indexPath.row) as! NSString
        cell.artist_name.text = animal1 as String
     }

    let cell = tableView.dequeueReusableCellWithIdentifier("cell", forIndexPath: indexPath) as! DetailTableViewCell
    override func tableView(tableView: UITableView, editActionsForRowAtIndexPath indexPath: NSIndexPath) -> [UITableViewRowAction]? {

    let deleteAction = UITableViewRowAction(style: UITableViewRowActionStyle.Default, title: "Delete") { (action, indexPath) -> Void in
        tableView.beginUpdates()

        self.dict.removeObjectForKey(self.sectionTitle[indexPath.section])
        self.dict1.removeObjectForKey(self.sectionTitle[indexPath.section])
        self.dict2.removeObjectForKey(self.sectionTitle[indexPath.section])

        let newArr = NSMutableArray(array: self.sectionTitle)
        newArr.removeObjectAtIndex(indexPath.section)
        self.sectionTitle = newArr


        tableView.reloadData()
       tableView.endUpdates()

    }
}

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萨拉姆。。。。。谢谢你！！！萨拉姆，没问题，很好，谢谢沙哈，是的，下次谢谢