Today extension - Unable to load - swift

Question

I'm trying to load data into a table in extension today - The data is displayed at 1 start, then the message "Unable to load".
The console does not display any data - What may be the problem?
Here is my code in viewDidLoad:
override func viewDidLoad() {
super.viewDidLoad()
self.extensionContext?.widgetLargestAvailableDisplayMode = .expanded
loader.startAnimating()
loader.hidesWhenStopped = true
statusLabel.isHidden = true
tableView.delegate = self
tableView.dataSource = self
tableView.tableHeaderView = nil
tableView.isHidden = true
tableView.register(UINib(nibName: "LatestCell", bundle: nil), forCellReuseIdentifier: "latestCell")
if(checkDownloadable())
{
//Download OFFLINE
let realm = try! Realm()
let postsRealm = realm.objects(PostRealm.self)
var newPosts = [Post]()
var items: Int {
if(postsRealm.count > 5)
{
return 5
}else{
return postsRealm.count
}
}
for i in 0..<items {
let postRealm = postsRealm[i]
let postStandard = Post.init(id: postRealm.id, title: postRealm.title, date: postRealm.date, url: postRealm.url, content: postRealm.content, image: postRealm.image, authorName: postRealm.authorName, authorImage: postRealm.authorImage)
newPosts.append(postStandard)
}
self.posts = newPosts
self.loader.stopAnimating()
if(newPosts.count == 0)
{
self.statusLabel.isHidden = false
self.statusLabel.text = "Brak postów"
self.tableView.isHidden = true
}else{
self.statusLabel.isHidden = true
self.tableView.isHidden = false
}
self.tableView.reloadData()
}else{
//DOWNLOAD ONLINE
API.postsWidget(){ post in
self.posts = post ?? [Post]()
self.loader.stopAnimating()
if(post?.count == 0)
{
self.statusLabel.isHidden = false
self.statusLabel.text = "Brak postów"
self.tableView.isHidden = true
}else{
self.statusLabel.isHidden = true
self.tableView.isHidden = false
}
for p in self.posts {
self.addNewPost(post: p)
}
self.tableView.reloadData()
}
}
}
Anyone know what this is about?
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