Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
Delete %localappdata%/Plutonium/config.json and info.json, and try logging in again. If it's still the same thing, change DNS (https://www.windowscentral.com/how-change-your-pcs-dns-settings-windows-10) or use a VPN.