A website’s server has returned an error message indicating too many requests have been made. This is often a result of automated programs or scripts, such as bots, attempting to access the site excessively.
The 429 status code is commonly used in this situation and typically means that the website cannot process any more requests at the current time. To resolve the issue, it’s recommended that the individual or program making the requests limits its attempts to avoid overwhelming the server.
In some cases, websites may implement rate limiting measures to prevent abuse, such as restricting access to a specific area of the site or requiring users to complete a CAPTCHA challenge.
Source: https://www.cbssports.com/college-basketball/news/how-the-duke-vs-illinois-game-at-madison-square-garden-came-together-for-saturdays-nonconference-showdown