Update app.py

app.py

@@ -18,12 +18,12 @@ def get_column_name(possible_names, df):
     for name in possible_names:
         if name in df.columns:
             return name
-    raise KeyError(f"None of the expected column names {possible_names} found in dataset")
+    raise KeyError(f"None of the expected column names {possible_names} found in dataset. Available columns: {df.columns}")
 
 # Map column names dynamically
-designer_column = get_column_name(["Designer", "Brand"], df)
-category_column = get_column_name(["Category"], df)
-product_column = get_column_name(["Product", "Product Name"], df)
+designer_column = get_column_name(["brand_name"], df)
+category_column = get_column_name(["product_category"], df)
+product_column = get_column_name(["product_name"], df)
 
 # Load full dataset
 df = pd.read_csv(csv_file, nrows=10000)