Update app.py

app.py

@@ -36,8 +36,8 @@ if process_url_clicked:
     main_placeholder.text("Data Loading...Started...✅✅✅")
     data = loader.load()
     if not data:
-    st.error("Failed to load content from the provided URLs. Please check their availability.")
-    st.stop()
+        st.error("Failed to load content from the provided URLs. Please check their availability.")
+        st.stop()
     # split data
     text_splitter = RecursiveCharacterTextSplitter(
         separators=['\n\n', '\n', '.', ','],