The error message is accurate, they brought the website back up but not the API. This means third party sites can’t pull any data from the site.
Until they bring it back online, there’s nothing we can do — it’s not possible to simply scrape data from the website as that will only make the issues they are having worse. From what I gather it is an issue with handling the increased server load and they are working on optimizing the code as well as upgrade servers.
I have not been given an ETA on when the API will return so it’s recommended to keep checking their Discord. They will make an announcement when it is back online and the RA integration will start working again here.