using ollama reports an error in llmchain: error_wrappers

[H9990HH969]

I want to use the ollama llm deployed on another service. The code displayed below works fine with direct use of ollama, but errors occur when using llmchain.

code：
from langchain.chains import LLMChain
from langchain_community.llms import Ollama
model = Ollama(
base_url='http://XXXXXXX:11434',
model="qwen:32b",

)
print(model.invoke("tell a joke")) #pass
chain = LLMChain( llm=model)
print(chain("tell a joke")) #error

error：