Update app.py

app.py

@@ -67,7 +67,7 @@ def initialize_llmchain(llm_model, temperature, max_tokens, top_k, vector_db, pr
             max_new_tokens=max_tokens,
             top_k=top_k,
         )
-    elif:
+    else:
         llm_model1 == "mistralai/Mistral-7B-Instruct-v0.3":
         llm = HuggingFaceEndpoint(
             repo_id=llm_model1,