Cannot access comments; getting 504 message

[thesaucysoutherner]

I have cleared my cache and I am still unable to access comments, as the site directs me to a 504 message:

ERROR 504 - GATEWAY TIMEOUT
Why am I seeing this page?
The server that your request has reached is acting as a gateway or proxy to fulfil the request made by your client.

Web Browser => Web Front-End => Web Back-End

This server (Web Front-End) received an invalid response from an upstream (Web Back-End) server it accessed to fulfil the request.

In most cases this will not mean that the upstream server is down, but rather that the upstream server and the gateway/proxy do not agree on the protocol for exchanging data.

This problem is most commonly caused when there is a problem with IP communications between the Web Front and Back-Ends. Before you attempt to resolve this problem you should clear your browser cache completely.

Our support staff will be happy to assist you in resolving this issue. Please contact our Live Support or reply to any Tickets you may have received from our technicians for further assistance.

[pratikthink]

Hello, @thesaucysoutherner
Welcome to trac:

Our support staff will be happy to assist you in resolving this issue. Please contact our Live Support or reply to any Tickets you may have received from our technicians for further assistance.

as they said, please contact your host

[swissspidy]

Hi and welcome to Trac!

This is the place where we keep track of things like bugs and enhancements in WordPress core.

As the error message says, this is a server problem and not really a bug in WordPress.

Please try to contact your hosting provider's support as stated in the message.

In the future, support questions like yours are best asked at ​https://wordpress.org/support - unless it explicitly mentions the hosting provider's support / live chat, of course. That's always the best option in that case :-)