invalid nib registered for identifier (DeviceLostPhotoCell) - nib must contain exactly one top level object which must be a UITableViewCell instance

I'm trying to create a custom cell for my table. This custom cell must have a collection horizontal view inside. I did the configuration of the collection view with the delegate and datasource and add the necessary methods. Now I am getting the following error:

"reason: 'invalid nib registered for identifier (DeviceLostPhotoCell) - nib must contain exactly one top level object which must be a UITableViewCell instance'"

this is my code:

- (void)awakeFromNib {
    self.collectionView.delegate = self;
    self.collectionView.dataSource = self;
}

- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section; {
    return 5;
}

- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath;{
    UICollectionViewCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:@"DeviceImageCell" forIndexPath:indexPath];

    return cell;
}

this red square this with the identifier "DeviceImageCell" what should be the cell of my collection view.