fix bugs

app.py

@@ -1,10 +1,10 @@
 import gradio as gr
-import joblib
+import pickle 
 import pandas as pd
 
 # Load the saved model
-joblib_file = "logistic_model_pipeline.pkl"
-loaded_pipeline = joblib.load(joblib_file)
+with open("logistic_model_pipeline.pkl2", "rb") as f:
+    pipeline = pickle.load(f)
 
 # Define a function to make predictions
 def predict_heart_disease(age, sex_male, cigs_per_day, tot_chol, sys_bp, glucose):