Fix: update torch_dtype to auto

app.py

@@ -95,7 +95,7 @@ def initialize_llmchain(llm_model, temperature, max_tokens, top_k, vector_db, pr
     llm = HuggingFaceHub(
         repo_id=llm_model, 
         model_kwargs={"temperature": temperature, "max_new_tokens": max_tokens, "top_k": top_k,\
-        "trust_remote_code": True, "torch_dtype": torch.bfloat16}
+        "trust_remote_code": True, "torch_dtype": "auto"}
     )
     
     progress(0.5, desc="Defining buffer memory...")