It’s simply not available. Updating the errata in our repositories from this external service is (unfortunately) a manual process. There’s only a couple individuals on my team that understand how the process works and can run the process itself in our primary build system to add any new errata to the repositories. Even so, some of the data will likely be inaccurate.
Aside from this, the tool isn’t fully maintained (though we have some individuals who have an interest in making it better and are helping us on this).
If you are interested in making it better, the code may be reviewed here.