SpringerLink has started showing a couple of different error messages, particularly on book chapter pages. Searching content and downloading PDFs seems to be unaffected.

At https://link-springer-com.wikipedialibrary.idm.oclc.org/article/10.1007/s12207-023-09495-z (a journal article), I see

We’re sorry, something doesn't seem to be working properly.
Please try refreshing the page. If that doesn't work, please contact support so we can address the problem.

repeated a number of times across the page.

When accessing https://link-springer-com.wikipedialibrary.idm.oclc.org/book/9783658440053 I got

Service Unavailable

the first time I tried to access the page.

Here, and on another page for me earlier (but now I can't reproduce it), a user reported getting

Not Found

on a book chapter page.

It's unclear what's causing these issues at this point.