diff --git a/src/pages/backtesting/backtesting_page.py b/src/pages/backtesting/backtesting_page.py
index b7523de..d75392d 100644
--- a/src/pages/backtesting/backtesting_page.py
+++ b/src/pages/backtesting/backtesting_page.py
@@ -56,16 +56,19 @@ class DynamicStrategy(Strategy):
                 std = float(ind_config['params']['std'])
                 
                 def bb_calc(x):
+                    # Ensure input is a pandas Series with proper index
+                    series = pd.Series(x)
+                    
                     # Calculate BB using pandas-ta
-                    bb_result = ta.bbands(close=pd.Series(x), length=length, std=std)
+                    bb_result = ta.bbands(series, length=length, std=std)
                     
                     if bb_result is None or bb_result.empty:
                         return np.zeros(len(x)), np.zeros(len(x)), np.zeros(len(x))
                     
-                    # Get the column names (they should be BBL, BBM, BBU)
-                    upper_col = f'BBU_{length}_{std}.0'
-                    middle_col = f'BBM_{length}_{std}.0'  
-                    lower_col = f'BBL_{length}_{std}.0'
+                    # Get the column names from bb_result
+                    upper_col = bb_result.columns[2]  # BBU
+                    middle_col = bb_result.columns[1]  # BBM
+                    lower_col = bb_result.columns[0]  # BBL
                     
                     # Extract and process the values
                     upper = bb_result[upper_col].fillna(method='ffill').fillna(0).values