AppDelegateでアプリが固まってしまう

AppDelegateでアプリが固まってしまいます。
今、カメラアクセスと写真のアップロード部分を作っていて、それが実機でできません。
Xcodeから自分のiPhoneでアプリを起動したのですが
Camera access ボタンとPhoto upload ボタンは自分のiPhoneで表示されたのですが
それらは押せるだけしか機能がありません。Camera access ボタンを押したら、iPhone（実機）のカメラが開いて写真が撮れて、撮った写真をアプリに表示させたいです。Photo upload ボタンを押したら、iPhone（実機）のカメラロールが開き元からある写真の中から一枚を選べ、選択した写真をアプリに表示させたいです。
実機で立ち上げ、両方のボタンを押すと
AppDelegate.swiftの

class AppDelegate: UIResponder, UIApplicationDelegate {

の部分でエラーが出て（多分No signboardと）固まって動かなくなります。

コントローラには

import UIKit

class SendController:UIViewController,
UINavigationControllerDelegate,UIImagePickerControllerDelegate{
    
    //定数
    let ButtonCamera = 0
    let ButtomRead = 1
    let ButtonWrite = 2
    
    //変数
    var imageView:UIImageView  = UIImageView()
    var btnCamera:UIButton = UIButton(type: .custom)
    var btnRead:UIButton  = UIButton(type: .custom)
    var btnWrite:UIButton  = UIButton(type: .custom)

    
    //ロード完了時に呼ばれる
    override func viewDidLoad() {
        super.viewDidLoad()
        
//       //カメラボタン生成
//       self.view.addSubview(btnCamera)
//        //読み込み
//       self.view.addSubview(btnRead)
//       // イメージビューの生成
//       self.view.addSubview(imageView)
        
        imageView.frame = CGRect(x: 150, y: 100, width: 200, height: 200)
        imageView.contentMode = .scaleAspectFit
        view.addSubview(imageView)
        
        btnCamera.frame = CGRect(x: 0, y: 100, width: 100, height: 100)
        btnCamera.setTitle("Camera", for: .normal)
        btnCamera.tag = ButtonCamera
        btnCamera.addTarget(self, action: #selector(self.onClick(sender:)), for: .touchUpInside)
        btnCamera.backgroundColor = UIColor.green
        self.view.addSubview(btnCamera)
        
        btnRead.frame = CGRect(x: 0, y: 200, width: 100, height: 100)
        btnRead.setTitle("Read", for: .normal)
        btnRead.tag = ButtomRead
        btnRead.addTarget(self, action: #selector(self.onClick(sender:)), for: .touchUpInside)
        btnRead.backgroundColor = UIColor.red
        self.view.addSubview(btnRead)
        
        btnWrite.frame = CGRect(x: 0, y: 300, width: 100, height: 100)
        btnWrite.setTitle("Write", for: .normal)
        btnWrite.tag = ButtonWrite
        btnWrite.addTarget(self, action: #selector(self.onClick(sender:)), for: .touchUpInside)
        btnWrite.backgroundColor = UIColor.blue
        self.view.addSubview(btnWrite)
    }
    
    //ボタンクリック時に呼ばれる
    @IBAction func ButtonCamera(_ sender: Any) {
    }
    @IBAction func ButtonRead(_ sender: Any) {
    }
    func onClick(sender:UIButton){
       if sender.tag == ButtonCamera {
          openPicker(sourceType: UIImagePickerControllerSourceType.camera)
       }else if sender.tag == ButtomRead {
           openPicker(sourceType: UIImagePickerControllerSourceType.photoLibrary)
        }
        
    }
    
    //アラートの表示
    func showAlert(title: String?, text: String?) {
        let alert = UIAlertController(title: title, message: text, preferredStyle: UIAlertControllerStyle.alert)
        alert.addAction(UIAlertAction(title: "OK", style: UIAlertActionStyle.default, handler: nil))
        present(alert, animated: true, completion: nil)
    }

  //イメージピッカーのオープン
    func openPicker(sourceType:UIImagePickerControllerSourceType){
        if !UIImagePickerController.isSourceTypeAvailable(sourceType){
            showAlert(title: nil, text: "利用できません")
            return
        }
        
        //イメージピッカーの生成
        let picker = UIImagePickerController()
        picker.sourceType = sourceType
        picker.delegate = self
        
        //ビューコントローラーのビューを開く
        present(picker, animated: true, completion: nil)
           }
    
//   // イメージピッカーのイメージ取得時に呼ばれる
    func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
        let image = info[UIImagePickerControllerOriginalImage]as! UIImage
        imageView.image = image
        //ビューコントローラーのビューを閉じる
        picker.presentingViewController?.dismiss(animated: true,completion:nil)
    }
    
//    //イメージピッカーのキャンセル取得時に呼ばれる
    func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
        picker.presentingViewController?.dismiss(animated: true, completion: nil)
    }


}

と書き
ボタンの設定などは

のようにしました。
AppDelegate.swiftには

import UIKit
import Alamofire

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
    

    var window: UIWindow?


    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
        // Override point for customization after application launch.
        return true
    }

    func applicationWillResignActive(_ application: UIApplication) {
        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
        // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
    }

    func applicationDidEnterBackground(_ application: UIApplication) {
        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
    }

    func applicationWillEnterForeground(_ application: UIApplication) {
        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
    }

    func applicationDidBecomeActive(_ application: UIApplication) {
        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
    }

    func applicationWillTerminate(_ application: UIApplication) {
        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
    }


}

のように書いてあります。