ErrorViewController.swift

import UIKit

open class ErrorViewController: UIViewController {

    // MARK: - Variables

    public let errorLabel = UILabel()

    // MARK: - Lifecycle

    open override func viewDidLoad() {
        super.viewDidLoad()

        view.backgroundColor = UIColor.white
        errorLabel.numberOfLines = 0
        errorLabel.textAlignment = .center

        view.addSubview(errorLabel)

        errorLabel.anchor(in: view)
    }
}