IndexError: string index out of range

class TicTacToeBoard:
    def __init__(self):
        self.set = [['-', '-', '-'], ['-', '-', '-'], ['-', '-', '-']]
        self.count = 0
 
    def new_game(self):
        self.set = [['-', '-', '-'], ['-', '-', '-'], ['-', '-', '-']]
        self.count = 0
 
    def get_field(self):
        return self.set
 
    def check_field(self):
        print(self.set[2][1])
        if ['X', 'X', 'X'] in self.set:
            return 'X'
        elif ['0', '0', '0'] in self.set:
            return '0'
        elif self.set[0][0] == 'X' and self.set[1][0] == 'X' and self.set[2][0] == 'X':
            return 'X'
        elif self.set[0][1] == 'X' and self.set[1][1] == 'X' and self.set[2][1] == 'X':
            return 'X'
        elif self.set[0][2] == 'X' and self.set[1][2] == 'X' and self.set[2][2] == 'X':
            return 'X'
        elif self.set[0][0] == 'X' and self.set[1][1] == 'X' and self.set[2][2] == 'X':
            return 'X'
        elif self.set[2][0] == 'X' and self.set[1][1] == 'X' and self.set[0][2] == 'X':
            return 'X'
        elif self.set[0][0] == '0' and self.set[1][0] == '0' and self.set[2][0] == '0':
            return '0'
        elif self.set[0][1] == '0' and self.set[1][1] == '0' and self.set[2][1] == '0':
            return '0'
        elif self.set[0][2] == '0' and self.set[1][2] == '0' and self.set[2][2] == '0':
            return '0'
        elif self.set[0][0] == '0' and self.set[1][1] == '0' and self.set[2][2] == '0':
            return '0'
        elif self.set[2][0] == '0' and self.set[1][1] == '0' and self.set[0][2] == '0':
            return '0'
        elif self.count == 9:
            return 'D'
        else:
            return 'None'
 
    def make_move(self, row, col):
        self.count += 1
        move = 'X' if self.count % 2 != 0 else '0'
        sign = self.check_field()
        if sign == 'None':
            if self.set[row][col] == '-':
                self.set.insert([row - 1][col - 1], move)
                del self.set[row][col]
            else:
                return f'Клетка {row}, {col} уже занята'
        elif sign == 'D':
            return 'Игра уже завершена'
        sign = self.check_field()
        if sign == 'X':
            return 'Победил игрок X'
        elif sign == '0':
            return 'Победил игрок 0'
        elif sign == 'D':
            return 'Ничья'
        else:
            return 'Продолжаем играть'
 
board = TicTacToeBoard()
print(*board.get_field(), sep="\n")
print(board.make_move(1, 1))
print(*board.get_field(), sep="\n")
print(board.make_move(1, 1))
print(board.make_move(1, 2))
print(*board.get_field(), sep="\n")
print(board.make_move(2, 1))
print(board.make_move(2, 2))
print(board.make_move(3, 1))
print(board.make_move(2, 2))
print(*board.get_field(), sep="\n")

def make_move(self, row, col):
    move = '0' if self.count % 2 else 'X'
    sign = self.check_field()
    if sign == 'None':
        if self.set[row - 1][col - 1] == '-':
            self.set[row - 1][col - 1] = move
            self.count += 1