Is Greycite down?

None of my references are working any more. DOI or PMID. The inline citations just link to the doi and don’t parse to the author names, while the bibliography list is blank, or sometimes says “Kcite was unable to retrieve citation information for all the references. This could be because the wrong identifier has been used, or it is not present in the remote databases.”.

Here is a link example: http://sbio.uct.ac.za/research-projects/the-structure-of-the-nitrile-hydratase-from-bacillus-pallidus/

https://ww.wp.xz.cn/plugins/kcite/