demo_attack run error

[newworldd]

Important data file "/usr/local/lib/python3.10/dist-packages/OpenHowNet/HowNet_dict_complete" lost, please run OpenHowNet.download().
0%| | 0/11915 [00:02<?, ?it/s]
Traceback (most recent call last):
File "/home/pentest/work/OpenBackdoor-main/demo_attack.py", line 63, in
main(config)
File "/home/pentest/work/OpenBackdoor-main/demo_attack.py", line 43, in main
backdoored_model = attacker.attack(victim, poison_dataset, config)
File "/home/pentest/work/OpenBackdoor-main/openbackdoor/attackers/lws_attacker.py", line 166, in attack
poison_datasets = wrap_dataset_lws({'train': data['train']}, self.poisoner.target_label, model.tokenizer, self.poisoner_config['poison_rate'])
File "/home/pentest/work/OpenBackdoor-main/openbackdoor/data/data_utils.py", line 26, in wrap_dataset_lws
return wrap_util(dataset, target_label, tokenizer, poison_rate)
File "/home/pentest/work/OpenBackdoor-main/openbackdoor/data/lws_utils.py", line 289, in wrap_util
datasets[key] = prepare_dataset_parallel(dataset[key], poison_rate, train=(key == 'train'))
File "/home/pentest/work/OpenBackdoor-main/openbackdoor/data/lws_utils.py", line 118, in prepare_dataset_par allel
dataset = prepare_dataset_for_self_learning_bert(dataset, poison_rate, train)
File "/home/pentest/work/OpenBackdoor-main/openbackdoor/data/lws_utils.py", line 62, in prepare_dataset_for_ self_learning_bert
cands = get_candidates_sememe(sentence, tokenizer, MAX_CANDIDATES)
File "/home/pentest/work/OpenBackdoor-main/openbackdoor/data/lws_utils.py", line 212, in get_candidates_seme me
tags = pos_tag_wordnet(words)
File "/home/pentest/work/OpenBackdoor-main/openbackdoor/data/lws_utils.py", line 199, in pos_tag_wordnet
pos_tagged_text = nltk.pos_tag(text)
File "/usr/local/lib/python3.10/dist-packages/nltk/tag/init.py", line 168, in pos_tag
tagger = _get_tagger(lang)
File "/usr/local/lib/python3.10/dist-packages/nltk/tag/init.py", line 110, in _get_tagger
tagger = PerceptronTagger()
File "/usr/local/lib/python3.10/dist-packages/nltk/tag/perceptron.py", line 183, in init
self.load_from_json(lang)
File "/usr/local/lib/python3.10/dist-packages/nltk/tag/perceptron.py", line 274, in load_from_json
with open(loc + TAGGER_JSONS[lang]["weights"]) as fin:
TypeError: unsupported operand type(s) for +: 'ZipFilePathPointer' and 'str'