i made the code exactly like kenneth wrote but there is 2 errors in dungeon game that i cannot fix what shall i do?

import random
import os

CELLS = [(0,0),(1,0),(2,0),(3,0),(4,0),
         (0,1),(1,1),(2,1),(3,1),(4,1),
         (0,2),(1,2),(2,2),(3,2),(4,2),
         (0,3),(1,3),(2,3),(3,3),(4,3),
         (0,4),(1,4),(2,4),(3,4),(4,4)]

def clear_screen():
    os.system('cls' if os.name == 'nt' else 'clear')

def get_locations():
    return random.sample(CELLS,3)

def move_player(player,move):
    x,y = player
    if move == "LEFT":
        x -= 1
    if move == "RIGHT":
        x += 1
    if move == "UP":
        y -= 1
    if move == "DOWN":
        y += 1
    return x,y


def get_moves(player):
    moves = ['LEFT','RIGHT','UP','DOWN']
    x,y = player
    if x == 0:
        moves.remove('LEFT')
    if x == 4:
        moves.remove('RIGHT')
    if y == 0:
        moves.remove('UP')
    if y == 4:
        moves.remove('DOWN')

    return moves
def draw_map():
    print(" "*5)
    tile = "|{}"
    for cell in CELLS:
        x,y = cell
        if x < 4:
            line_end = ""
            if cell == player:
                output = tile.format("X")
            else:
                output = tile.format(_)
        else:
            line_end = "/n"
            if cell == player:
                output = tile.format("X|")
            else:
                output = tile.format("_|")

        print(output, end=end_line)

def game_loop():            
    monster , door, player = get_locations()
    playing = True
    while playing:
        clear_screen()
        draw_map(player)
        valid_moves = get_moves(player)
        print("you are currently in room {}".format(player)) 
        print("you can move {}".format(",".join(valid_moves))) 
        print("Enter QUIT to quit")


        move = input(">").upper()
        move = move.upper()

        if move == "QUIT":
            print("see you next time!")
            break
        if move in valid_moves:
            player = move_player(player,move)
            if player == monster:
                print("oh no the monster got you better luck next time!!")

                playing = False
            if player == door:
                print("you escaped.. congratulations!")
                playing = False
    else:
        if input("play again? [y/n]").lower() != "n":
            game_loop()
        else:
            input("/n **walls are hard! dont run into them **/n")


clear_screen()
print("welcome to the dungeon game..")
input("press return to start")
clear_screen()
game_loop()