Error 500 - Server Error

List of URLs with errors:

• https://doi.org/10.1111/j.1600-0889.2011.00530.x - Error message: Expected a successful HTTP response for URL https://doi.org/10.1111/j.1600-0889.2011.00530.x expect(received).toBeLessThan(expected) Expected: < 404 Received: 500
• https://datacommons.psu.edu - Error message: Expected a successful HTTP response for URL https://datacommons.psu.edu expect(received).toBeLessThan(expected) Expected: < 404 Received: 404