SelfPlay Illegal Move

[xhw98]

here is traceback,i will be grateful if you can help me! Traceback (most recent call last): File "C:/Users/allen/Downloads/TaDing-MuGo-master/MuGo/selfplay.py", line 43, in winners, losers = extract_moves(positions) File "C:/Users/allen/Downloads/TaDing-MuGo-master/MuGo/selfplay.py", line 32, in extract_moves sgf_wrapper.replay_position(final_position)) File "C:\Users\allen\Downloads\TaDing-MuGo-master\MuGo\utils.py", line 67, in take_n return list(itertools.islice(iterable, n)) File "C:\Users\allen\Downloads\TaDing-MuGo-master\MuGo\sgf_wrapper.py", line 174, in replay_position pos = pos.play_move(next_move, color=color) File "C:\Users\allen\Downloads\TaDing-MuGo-master\MuGo\go.py", line 354, in play_move raise IllegalMove("Move at {} is illegal: \n{}".format(c, self)) go.IllegalMove: Move at (7, 18) is illegal: A B C D E F G H J K L M N O P Q R S T
19 . . . . . . . . . . . . . . . . . . . 19 18 . . . O . . . X . . . . . . X . . . . 18 17 . . X . . O . O O . . X X X O X X X . 17 16 . . . X . . . . . . . X O O O O O X . 16 15 . . . . . . . . . . X O X X X<O O O O 15 14 . . X . . . . . . . . O . . X O X X O 14 13 . . . . . . . . . . O . . X X O O X X 13 12 . . . . . . . . . . X X X . X X O X . 12 11 . . . . . . . . . X O O . X O O X X O 11 10 . . . . . . . . . . X O O O O O O X O 10 9 . . . . . . . . . . . X . . O X X X O 9 8 . . . . . . . . . . X . O X O X O O . 8 7 . . O . . . . . . . . . X O X X O X . 7 6 . O X . . . . . . . . . O O O O O . . 6 5 . O X O O . . . . O . . . . . . . O . 5 4 . . O X . X . . . . . . O X . X . X . 4 3 . O O X . O X . . . . . . X . . . . . 3 2 . O X X . . . . . . . X . . . . . . . 2 1 . X . . . . . . . . . . . . . . . . . 1 A B C D E F G H J K L M N O P Q R S T
Move: 122. Captures X: 0 O: 1

Process finished with exit code 1