What does it mean when an Arduino sends data to a Local Server and receives a HTTP Response Code of 301?

edit

A HTTP response code of 301 indicates a "Moved Permanently" status. This means that the server has moved the requested page or resource to a different URL. In the context of an Arduino sending data to a local server, it could mean that the server has changed the address or location of the endpoint that the Arduino is attempting to access. The Arduino will need to update its request to the new URL in order to successfully receive a response.