All requests for translating are failing with a 503 error. For example with the following request (which can also be tested here):
$ curl 'https://cxserver.wikimedia.org/v2/translate/es/en/MinT' -i -X POST -H 'Content-Type: application/json' --data-raw $'{"html":"<span>Hola Mundo</span>"}'Response:
{"error":{"message":"Translation with MinT es>en failed: 503"}}
This is effecting the Wishlist intake form translation banner (which you can enable as a gadget on Meta and see in action at meta:Community_Wishlist/Wishes):
(ignore the JSON-formatted error messages there; that's a separate issue, they should be displaying just the actual error message).