Hey nostr:npub1pg5wkhjs3mtxq7xtwjhnygy9lg9xlatty5gxv8dpz0gstrh0sc0s24u78v, I was able to login with Amber when I tested just now.
Did you try it on more than one browser, or can you delete the Amber config and create a new one?
If you want, you can open an issue on GitHub and paste in the browser console error you see, or send me the file via Pastebin (or similar) so I can try to diagnose it.
https://i.nostr.build/skyJ2FiXZE2JY6hQ.png https://i.nostr.build/b7LacwmROne3kjNR.png