After the last update RUST

constantly writes in the console

[Update Notice] API: Failed to check for RUST updates, if this keeps happening please contact the developer.

Error Code: 521 | Message: error code: 521

Do you still have this error? if so please DM me your config file.

hello, I have same problem after this wipe and updated server I have constantly this message in console : 

[Update Notice] API: Failed to check for RUST updates, if this keeps happening please contact the developer. Error Code: 521 | Message: error code: 521