Explain the error of 502 and 404?

[spobitsseo]

Explain the error of 502 and 404?

[ITSGOLIVE]

The 502 Bad Gateway error is an HTTP status code that means that one server on the internet received an invalid response from another server.
A 404 error is an HTTP status code that means that the page you were trying to reach on a website couldn't be found on their server.

[daikaads]

502 is an HTTP status code which is used to alert the user about the Bad Gateway error that one server on the Internet received an invalid response from the other server.

404 error is an HTTP status code which is used to inform the user that the web page is not available on the internet or server.

[RealEstateA]

The 502 Bad Gateway error is an HTTP status code that means that one server on the internet received an invalid response from another server.
A 404 error is an HTTP status code that means that the page you were trying to reach on a website couldn't be found on their server.

Hi ITSGOLIVE,
Can you tell the way to solve this problem? I am interested to know that if you don't mind.

[fayeseom]

502 or bad gateway error is occurs when the server was acting as a gateway or proxy and it received an invalid response from the upstream server it accessed to fulfill the request.

404 or not found error message is generated by the website hosting server when a user attempts to follow a broken or dead link. In other words this error code indicates that the client (user) was able to communicate with the server but the server could not find what was requested.

[neelseowork]

502: its a bad gateway
404: not found.
404 error message is a standard response code, indicate that the client was able to communicate with a given server, but the server could not find what was requested.