Grant Library Access gives "unexpected error" page

When I type the first character in the email field, I get an “unexpected error” page.

Server Environment Summary

  • Version: Plex Media Server v1.43.0.10492.

  • Platform: Running in a Docker container (LinuxServer.io) on Unraid (Linux version 6.1.49). +4

  • Hardware: Powered by an 16-core AMD Ryzen 7 5700G processor.

Ensure to use

  • the hosted web app
  • a major web browser with no add-ins or features which aim to block websites
  • avoid VPN software

@OttoKerner

I’ve tried accessing https://app.plex.tv/ on:

  • Firefox, Chrome and Safari
  • Windows and Mac OS machines
  • No VPNs

I still get this:

Is there anything I can look for in the logs?

Is there anything like an advanced Internet filter in your router or at your ISP? Do you use other types of filter appliances, like e.g. Pi-hole etc.?