Update app.py

app.py

@@ -165,7 +165,7 @@ def prepare_training_data(qa_pairs, tokenizer):
   return encoded_data
 
 # Prepare training data
-train_data = prepare_training_data(qa_pairs)
+train_data = prepare_training_data(qa_pairs, tokenizer)
 
 # Train the model
 learning_rate = 2e-5