Los códigos de clase 5XX indican que el servidor tiene un problema con la solicitud.

HTTP error 500 Internal Server Error

HTTP error 501 Not Implemented

HTTP error 502 Bad Gateway

HTTP error 503 Service Unavailable

HTTP error 504 Gateway Timeout

HTTP error 505 HTTP Version Not Supported

HTTP error 506 Variant Also Negotiates

HTTP error 507 Insufficient Storage

HTTP error 508 Loop Detected

HTTP error 510 Not Extended

HTTP error 511 Network Authentication Required

HTTP error 520 Web Server Is Returning an Unknown Error

HTTP error 521 Web Server Is Down

HTTP error 522 Connection Timed Out

HTTP error 523 Origin Is Unreachable

HTTP error 524 A Timeout Occurred

HTTP error 525 SSL Handshake Failed

HTTP error 526 Invalid SSL Certificate

HTTP error 527 Railgun Error

HTTP error 561 Unauthorized

HTTP error 598 Network Read Timeout Error
