I have this Error "this class is not key value coding-compliant for the key tittleLabel." How can I fix it? – Ios swift

Here is all of my code, as said in the title there is an Error occurring when I try to run my app I’m not sure what I can do to fix it. How can I fix this I have tried a couple of things that have not worked.

import UIKit
import AVFoundation

class ViewController: UIViewController {
    
    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view.
    }

   
    
    @IBOutlet weak var progressBar: UIProgressView!
       
    @IBOutlet weak var titleLabel: UILabel!
    
        let coffeeTimes = ["Decaf": 5]
    var timer = Timer()
    var player: AVAudioPlayer!
    var totalTime = 0
    var secondsPassed = 0
    
    @IBAction func coffeeSelected(_ sender: UIButton) {
    
    timer.invalidate()
        let coffee = sender.currentTitle!
        totalTime = coffeeTimes[coffee]!

        progressBar.progress = 0.0
        secondsPassed = 0
        titleLabel.text = coffee

        timer = Timer.scheduledTimer(timeInterval: 1.0, target:self, selector: #selector(updateTimer), userInfo:nil, repeats: true)
    }
    
    @objc func updateTimer() {
        if secondsPassed < totalTime {
            secondsPassed += 1
            progressBar.progress = Float(secondsPassed) / Float(totalTime)
            print(Float(secondsPassed) / Float(totalTime))
        } else {
            timer.invalidate()
            titleLabel.text = "check coffee"
            
            let url = Bundle.main.url(forResource: "alarm_sound", withExtension: "mixkit-warnin...uzzer-991(1)")
            player = try! AVAudioPlayer(contentsOf: url!)
            player.play()
        }
    }
}