HASSIO + DuckDns Login Response "Something Went Wrong"

I am trying to set up Duckdns in the latest version of HASSIO.
I followed all the steps and in the logs I can see that made a certificate and a key.
I forwarded port 80–>80; 443–>443 and 8123–>8123.
When I try to login from my duckdns website it does show the HomeAssistant Login screen - but never asks me for my login or password and just waits for a while and then response “Login Failed: Something went wrong”
Please help!