fix try

app.py

@@ -69,7 +69,7 @@ def load_llamaindex_stack(model_id: str, max_new_tokens: int, temperature: float
     else:
         task = "text-generation" 
 
-     try:
+    try:
         llm = HuggingFaceLLM(
         model_name=model_id,
         tokenizer_name=model_id,