meteohub.de

It seems Meteobridge doesn't like my Weather Cloud login info, even though it is correct.

I have tried to use my email in place of my username and changing my password. But I still get the error.

Is this just a bug?

Weathercloud does provides an ID and a passkey for you for each of the signed in devices.
Therefore, the user and password from web interface will not do the job, you need the device specific login data.