Update app.py

app.py

@@ -23,7 +23,7 @@ def run_async(coro):
 
 # Load lightweight text generation model
 try:
-    generator = pipeline("text-generation", model="distilbert/distilgpt2", device="cpu")
+    generator = pipeline("text-generation", model="distilbert/distilgpt2", device="cpu", pad_token_id=50256)
 except Exception as e:
     print(f"Error loading model: {e}")
     generator = None