Ollama App1 Request Fails, ResponseError: model is required (status code: 400)

[Wayneless]

When using the genai-stack-bot-1 container for conversation, the Streamlit application throws an error with the following traceback:
ResponseError: model is required (status code: 400)
File "/usr/local/lib/python3.11/site-packages/streamlit/runtime/scriptrunner/script_runner.py", line 542, in _run_script
exec(code, module.dict)
File "/app/bot.py", line 182, in
chat_input()
File "/app/bot.py", line 95, in chat_input
result = output_function(
^^^^^^^^^^^^^^^^
File "/app/chains.py", line 120, in generate_llm_output
answer = chain.invoke(
^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/site-packages/langchain_core/runnables/base.py", line 3024, in invoke
input = context.run(step.invoke, input, config)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/site-packages/langchain_core/language_models/chat_models.py", line 284, in invoke
self.generate_prompt(
File "/usr/local/lib/python3.11/site-packages/langchain_core/language_models/chat_models.py", line 860, in generate_prompt
return self.generate(prompt_messages, stop=stop, callbacks=callbacks, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/site-packages/langchain_core/language_models/chat_models.py", line 690, in generate
self._generate_with_cache(
File "/usr/local/lib/python3.11/site-packages/langchain_core/language_models/chat_models.py", line 925, in _generate_with_cache
result = self._generate(
^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/site-packages/langchain_ollama/chat_models.py", line 644, in _generate
final_chunk = self._chat_stream_with_aggregation(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/site-packages/langchain_ollama/chat_models.py", line 545, in _chat_stream_with_aggregation
for stream_resp in self._create_chat_stream(messages, stop, **kwargs):
File "/usr/local/lib/python3.11/site-packages/langchain_ollama/chat_models.py", line 527, in _create_chat_stream
yield from self._client.chat(
File "/usr/local/lib/python3.11/site-packages/ollama/_client.py", line 168, in inner
raise ResponseError(e.response.text, e.response.status_code) from None