Update app.py

app.py

@@ -314,6 +314,8 @@ main_bg_ext = "png"
 main_bg = "bg1.jpg"
 # Read and encode the logo image
 
+with open(logo_path, "rb") as image_file:
+    encoded_logo = base64.b64encode(image_file.read()).decode()
 # Custom CSS to style the logo above the sidebar
 st.markdown(
     f"""