Update app.py

app.py

@@ -4,7 +4,7 @@ import lightgbm as lgb
 import pickle
 
 # Load the trained LightGBM model
-with open('lgb.pkl', 'rb') as model_file:
+with open('lightgbm_model.pkl', 'rb') as model_file:
     model = pickle.load(model_file)
 
 # Define mappings