Trying to make a textbox typewriter, I am having multiple errors C#

@Ejpj123

This is the edited code. The main problem was with your curly brackets. If they are not placed correctly it can cause chaos throughout the code. The other problem is because of a different script (OnTriggerExit2D).

 using System.Collections;
 using UnityEngine;
 using UnityEngine.UI;
 
 public class TextBoxManager : MonoBehaviour
 {
     public GameObject textBox;
 
     public Text theText;
 
     public TextAsset textFile;
     public string[] textLines;
 
     public int currentLine;
     public int endAtLine;
 
     public playerController player;
 
     public bool isActive;
 
     public bool stopPlayerMovement;
 
     private bool isTyping = false;
     private bool cancelTyping = false;
 
     public float typeSpeed;
 
     // Use this for initialization
     void Start()
     {
 
         player = FindObjectOfType<playerController>();
 
         if (textFile != null)
         {
             textLines = (textFile.text.Split('\n'));
         }
 
         if (endAtLine == 0)
         {
             endAtLine = textLines.Length - 1;
 
         }
 
         if (isActive)
         {
             EnableTextBox();
         }
 
         else
         {
             DisableTextBox();
         }
 
     }
 
     void Update()
     {
 
         if (!isActive)
         {
             return;
         }
 
         theText.text = textLines [currentLine];
 
         if (Input.GetKeyDown(KeyCode.Return))
         {
             if (!isTyping)
             {
                 currentLine += 1;
 
                 if (currentLine > endAtLine)
                 {
                     DisableTextBox();
                 }
 
                 else
                 {
                     StartCoroutine(TextScroll(textLines[currentLine]));
                 }
             }
 
             else if (isTyping && !cancelTyping)
             {
                 cancelTyping = true;
             }
         }
     }
 
     private IEnumerator TextScroll(string lineOfText)
     {
         int letter = 0;
         theText.text = "";
         isTyping = true;
         cancelTyping = false;
 
         while (isTyping && !cancelTyping && (letter < lineOfText.Length - 1))
         {
             theText.text += lineOfText[letter];
             letter += 1;
             yield return new WaitForSeconds(typeSpeed);
         }
 
         theText.text = lineOfText;
         isTyping = false;
         cancelTyping = false;
     }
 
 
     public void EnableTextBox()
     {
 
         textBox.SetActive(true);
         isActive = true;
 
         if (stopPlayerMovement)
         {
             player.canMove = false;
             player.anim.speed = 0;
         }
 
         StartCoroutine(TextScroll(textLines[currentLine]));
     }
 
     public void DisableTextBox()
     {
         textBox.SetActive(false);
         isActive = false;
 
         player.canMove = true;
     }
 
     public void ReloadScript(TextAsset theText)
     {
         if (theText != null)
         {
             textLines = new string[1];
             textLines = (theText.text.Split('\n'));
         }
     }
 }