请教一个关于异常捕获的问题

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1

请问各位前辈,我在调用chain.run后，余额不足，如何能捕获到该错误信息呢，代码如下，目前无法获取到错误信息

import langchain.llms.openai
from langchain import OpenAI, PromptTemplate, LLMChain
from langchain.text_splitter import CharacterTextSplitter
from langchain.chains.mapreduce import MapReduceChain
from langchain.prompts import PromptTemplate
from langchain.docstore.document import Document
from langchain.chains.summarize import load_summarize_chain
from langchain.document_loaders import UnstructuredFileLoader
from langchain.text_splitter import RecursiveCharacterTextSplitter

try:
    text_splitter = CharacterTextSplitter()
    loader = UnstructuredFileLoader("/public/quque/data/20230612143246198_summarize.txt")
    # 将文本转成 Document 对象
    document = loader.load()
    # 初始化文本分割器
    text_splitter = RecursiveCharacterTextSplitter(
        chunk_size = 100,
        chunk_overlap = 10,
    )
    #print(f'documents:{len(document)}')

    # 切分文本
    split_documents = text_splitter.split_documents(document)
    #print(f'documents:{len(split_documents)}')
    llm = OpenAI(openai_api_key="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",model_name="text-curie-001",max_tokens=1024,temperature=0.3)
    print(llm)

    prompt_template = """根据下面的内容做一下总结:

    {text}

    请使用中文回复:"""

    PROMPT = PromptTemplate(template=prompt_template, input_variables=["text"])
    # chain.run(docs)
    chain = load_summarize_chain(llm, chain_type="refine", question_prompt=PROMPT, verbose=False)
    #result = chain.run(split_documents[:len(split_documents)])
    #print(result);
except Exception as e:
    print("Error:", str(e))