Update app.py

app.py

@@ -56,7 +56,10 @@ def generate(
     top_k: int = 50,
     repetition_penalty: float = 1.2,
 ) -> Iterator[str]:
-   
+    if chat_history is None:
+        logging.error("chat_history is None, initializing to empty list.")
+        chat_history = []  # Initialize to an empty list if None is passed
+
     conversation = []
     if system_prompt:
         conversation.append({"role": "system", "content": system_prompt})
@@ -98,6 +101,7 @@ def generate(
     for text in streamer:
         outputs.append(text)
         yield "".join(outputs)
+logging.basicConfig(level=logging.DEBUG)
 
 # Gradio Interface Setup
 chat_interface = gr.ChatInterface(