What is error 502 Bad Gateway

he 502 Bad Gateway Error , like all HTTP status codes that start with the number 5, occurs because there is an error caused by an item from outside your computer or browser, not necessarily caused by the end server. Specifically, the 502 Bad Gateway error tells you that a server that was acting as a gateway or proxy has received an invalid response from an incoming server. The display of error 502 may vary slightly depending on the server in question. It may appear with expressions similar to: “Error 502”, “502 Invalid Gateway”, “502 Bad Gateway”, or “502 That’s an error ”, etc,.