from sklearn.model_selection import train_test_split

from keras.utils import to_categorical

from keras.models import Sequential
from keras.layers import LSTM, Dense
from keras.callbacks import TensorBoard
label_map = {label:num for num, label in enumerate(actions)}
sequences, labels = [], []
for action in actions:
for sequence in range(no_sequences):
    window = []
    for frame_num in range(sequence_length):
        res = np.load(os.path.join(DATA_PATH, action, str(sequence), "{}.npy".format(frame_num)))`ERROR`
        window.append(res)`your text`
    sequences.append(window)
    labels.append(label_map[action])

Error occurs in the line np.load() method while loading .npy array