Update app.py

app.py

@@ -78,6 +78,9 @@ def main():
         if user_input:
             url = "https://www.sbbusba.edu.pk/"  # Example URL
             web_content = scrape_website(url)
+            relevant_data = []  # Initialize with a default value
+
+        if web_content:  # Ensure web content is not empty
             relevant_data = search(user_input, [web_content])
 
         if relevant_data and isinstance(relevant_data[0], str):