addin warning if pull failed

app.py

@@ -170,10 +170,14 @@ with st.sidebar:
                         stderr=subprocess.PIPE,
                         text=True,  # Decode stdout/stderr as text
                     )
-                    st.success(f"Background task started with PID: {process.pid}")
+                    st.info(f"Background task started with PID: {process.pid}")
                     process.wait()
                     process.kill()
-                    st.success(f"PID {process.pid} finished!")
+                    # stdout, stderr = process.communicate()
+                    if process.returncode != 0:
+                        st.error("The process did not finish successfully.")
+                    else:
+                        st.success(f"PID {process.pid} finished!")
                     # If a user has the right perms, then this clears the cache
                     load_results.clear()
                     get_volume.clear()