trying to set up a table view

Hello, I am trying to set up a table view but I am getting an error when I try to assign the ViewController table delegate and data source. Here is my code:

import UIKit
import CoreMotion
import CoreML
import UserNotifications

protocol Numeric {
   var asDouble: Double { get }
   init(_: Double)
 }
 extension Int: Numeric {var asDouble: Double { get {return Double(self)}}}
 extension Float: Numeric {var asDouble: Double { get {return Double(self)}}}
 extension Double: Numeric {var asDouble: Double { get {return Double(self)}}}
 extension CGFloat: Numeric {var asDouble: Double { get {return Double(self)}}}
 extension Array where Element: Numeric {
   var mean : Element { get { return Element(self.reduce(0, {$0.asDouble + $1.asDouble}) / Double(self.count))}}
   var sd : Element { get {
    let sss = self.reduce((0.0, 0.0)){ return ($0.0 + $1.asDouble, $0.1 + ($1.asDouble * $1.asDouble))}
    let n = Double(self.count)
    return Element(sqrt(sss.1/n - (sss.0/n * sss.0/n)))
   }}
 }
extension Array where Element: Hashable {
  func allEqual(to value: Element) -> Bool {
    let set = Set(self)
    return (set.count == 1 && set.first == value)
  }
}

extension ViewController: UITableViewDelegate {
   
}

extension ViewController: UITableViewDataSource {
  func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    return 10
  }
   
  func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath)
    cell.textLabel?.text = "Hello World"
    return cell
  }
}

class ViewController: UIViewController {
   
   
  @IBOutlet weak var gyroX: UILabel!
  @IBOutlet weak var gyroY: UILabel!
  @IBOutlet weak var gyroZ: UILabel!
   
  @IBOutlet weak var accelX: UILabel!
  @IBOutlet weak var accelY: UILabel!
  @IBOutlet weak var accelZ: UILabel!
   
  @IBOutlet weak var quaternionX: UILabel!
  @IBOutlet weak var quaternionY: UILabel!
  @IBOutlet weak var quaternionZ: UILabel!
  @IBOutlet weak var quaternionW: UILabel!
   
  @IBOutlet weak var gravityX: UILabel!
  @IBOutlet weak var gravityY: UILabel!
  @IBOutlet weak var gravityZ: UILabel!
   
  @IBOutlet weak var useraccelX: UILabel!
  @IBOutlet weak var useraccelY: UILabel!
  @IBOutlet weak var useraccelZ: UILabel!
   
  @IBOutlet weak var yaw: UILabel!
  @IBOutlet weak var pitch: UILabel!
  @IBOutlet weak var roll: UILabel!
   
  @IBOutlet weak var predicted_activity: UILabel!
   
  @IBAction func cancelToHome(_ segue: UIStoryboardSegue) {
   }
   
  @IBOutlet weak var notif_log: UITableView!

  
   
   
  struct ModelConstants {
    static let predictionWindowSize = 50
    static let sensorsUpdateInterval = 1.0 / 50.0
    static let stateInLength = 400
  }
   
  var pred_action = "Nothing yet"

  let activityClassificationModel = TC_RF()
  var currentIndexInPredictionWindow = 0

  var accelDataX = Array(repeating: Double(0), count: ModelConstants.predictionWindowSize)
  var accelDataY = Array(repeating: Double(0), count: ModelConstants.predictionWindowSize)
  var accelDataZ = Array(repeating: Double(0), count: ModelConstants.predictionWindowSize)

  var gyroDataX = Array(repeating: Double(0), count: ModelConstants.predictionWindowSize)
  var gyroDataY = Array(repeating: Double(0), count: ModelConstants.predictionWindowSize)
  var gyroDataZ = Array(repeating: Double(0), count: ModelConstants.predictionWindowSize)
   
  var quaternionDataX = Array(repeating: Double(0), count: ModelConstants.predictionWindowSize)
  var quaternionDataY = Array(repeating: Double(0), count: ModelConstants.predictionWindowSize)
  var quaternionDataZ = Array(repeating: Double(0), count: ModelConstants.predictionWindowSize)
  var quaternionDataW = Array(repeating: Double(0), count: ModelConstants.predictionWindowSize)
   
  var gravityDataX = Array(repeating: Double(0), count: ModelConstants.predictionWindowSize)
  var gravityDataY = Array(repeating: Double(0), count: ModelConstants.predictionWindowSize)
  var gravityDataZ = Array(repeating: Double(0), count: ModelConstants.predictionWindowSize)
   
  var useraccelDataX = Array(repeating: Double(0), count: ModelConstants.predictionWindowSize)
  var useraccelDataY = Array(repeating: Double(0), count: ModelConstants.predictionWindowSize)
  var useraccelDataZ = Array(repeating: Double(0), count: ModelConstants.predictionWindowSize)
   
  var yawData = Array(repeating: Double(0), count: ModelConstants.predictionWindowSize)
   
  var rollData = Array(repeating: Double(0), count: ModelConstants.predictionWindowSize)
   
  var pitchData = Array(repeating: Double(0), count: ModelConstants.predictionWindowSize)
   
   
  var stateOutput = try! MLMultiArray(shape:[ModelConstants.stateInLength as NSNumber], dataType: MLMultiArrayDataType.double)
   
  let motionManager = CMMotionManager()
   
  override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view.
    notif_log.delegate = self
    notif_log.dataSource = self
  
    UNUserNotificationCenter.current().delegate = self
    MyGyro()
    MyAccel()
    MyQuaternion()
    MyGravity()
    MyUserAccel()
    MyYaw()
    MyPitch()
    MyRoll()
    self.scheduleNotifications(content_body: self.pred_action)
  }
   

The issue is at  notif_log.delegate = self where it gets this error: Fatal error: Unexpectedly found nil while implicitly unwrapping an Optional value

I am not sure why there would be a nil value here. Any advice?