terminating with uncaught exception of type NSException

[backter]

Hello i'm first use Third-party libraries
i have a error

//
// ViewController.swift

import UIKit
import NotchToolkit
class ViewController: UIViewController,NotchToolbarDelegate {
let toolbar = NotchToolbar ()
func deviceDidRotate() {
toolbar.autoResize()
}

func didTapToolIcon(_ tools: UICollectionView, toolIndex: IndexPath, section: Int, row: Int) {
 if row == 0 {
 print("first icon")
 }else if row == 1 {
 print("second icon")
 }
}
override func viewDidLoad() {
 super.viewDidLoad()
 toolbar.notch.isVisible = true
 
 toolbar.notch.height = 250
 
 toolbar.toolList = [
 //[icon image, title]
 [UIImage(named:"pikachusquare")!, "Pikachu"],
 //only image icons
 UIImage(named:"spongebob")!,
 //only string icons (mainly for emojis 😉)
 "🤔", "🤓",
 "📱", "👩‍💻",
 "👨‍💻", "✅", "🔥"]
 
 toolbar.delegate = self
 toolbar.initializeToolbar(self)
 
 // Do any additional setup after loading the view, typically from a nib.
}




@IBAction func Click(_ sender: UIButton) {
 if toolbar.notch.isVisible {
 sender.setTitle("Show Notch Toolbar", for: .normal)
 }else{
 sender.setTitle("Hide Notch Toolbar", for: .normal)
 }
 toolbar.showOrHide()
}

}