API サーバーが立ち上がらない (Ubuntu)

[ku6ryo]

Runpod のクラウドサーバー (Ubuntu) で API サーバーを立ち上げようとしたところ、以下のエラーがでて立ち上がりませんでした。原因・解決方法がわかれば教えていただきたいです。

(new_env) root@7353202850ee:/workspace/Style-Bert-VITS2# python server_fastapi.py
10-04 19:13:30 | DEBUG  | __init__.py:130 | pyopenjtalk worker server started
Error: Failed to update dictionary.
Traceback (most recent call last):
  File "/workspace/Style-Bert-VITS2/style_bert_vits2/nlp/japanese/user_dict/__init__.py", line 145, in update_dict
    pyopenjtalk.mecab_dict_index(str(tmp_csv_path), str(tmp_compiled_path))
  File "/workspace/Style-Bert-VITS2/style_bert_vits2/nlp/japanese/pyopenjtalk_worker/__init__.py", line 46, in mecab_dict_index
    WORKER_CLIENT.dispatch_pyopenjtalk("mecab_dict_index", path, out_path, dn_mecab)
  File "/workspace/Style-Bert-VITS2/style_bert_vits2/nlp/japanese/pyopenjtalk_worker/worker_client.py", line 41, in dispatch_pyopenjtalk
    response = receive_data(self.sock)
  File "/workspace/Style-Bert-VITS2/style_bert_vits2/nlp/japanese/pyopenjtalk_worker/worker_common.py", line 44, in receive_data
    body = __receive_until(sock, data_length)
  File "/workspace/Style-Bert-VITS2/style_bert_vits2/nlp/japanese/pyopenjtalk_worker/worker_common.py", line 35, in __receive_until
    raise ConnectionClosedException("接続が閉じられました")
style_bert_vits2.nlp.japanese.pyopenjtalk_worker.worker_common.ConnectionClosedException: 接続が閉じられました
Traceback (most recent call last):
  File "/workspace/Style-Bert-VITS2/server_fastapi.py", line 52, in <module>
    update_dict()
  File "/workspace/Style-Bert-VITS2/style_bert_vits2/nlp/japanese/user_dict/__init__.py", line 159, in update_dict
    raise e
  File "/workspace/Style-Bert-VITS2/style_bert_vits2/nlp/japanese/user_dict/__init__.py", line 145, in update_dict
    pyopenjtalk.mecab_dict_index(str(tmp_csv_path), str(tmp_compiled_path))
  File "/workspace/Style-Bert-VITS2/style_bert_vits2/nlp/japanese/pyopenjtalk_worker/__init__.py", line 46, in mecab_dict_index
    WORKER_CLIENT.dispatch_pyopenjtalk("mecab_dict_index", path, out_path, dn_mecab)
  File "/workspace/Style-Bert-VITS2/style_bert_vits2/nlp/japanese/pyopenjtalk_worker/worker_client.py", line 41, in dispatch_pyopenjtalk
    response = receive_data(self.sock)
  File "/workspace/Style-Bert-VITS2/style_bert_vits2/nlp/japanese/pyopenjtalk_worker/worker_common.py", line 44, in receive_data
    body = __receive_until(sock, data_length)
  File "/workspace/Style-Bert-VITS2/style_bert_vits2/nlp/japanese/pyopenjtalk_worker/worker_common.py", line 35, in __receive_until
    raise ConnectionClosedException("接続が閉じられました")
style_bert_vits2.nlp.japanese.pyopenjtalk_worker.worker_common.ConnectionClosedException: 接続が閉じられました
10-04 19:13:30 | DEBUG  | __init__.py:147 | pyopenjtalk worker server terminated
10-04 19:13:30 | ERROR  | __init__.py:157 | 接続が閉じられました