hi
as far as i am aware Zever Solar and as such Zevercloud no longer exists. this means that you can no longer use an API to pull generation data from the cloud. if you still have a working cloud account could you please send the link to the site.
i have managed to get my Zever Solar system to report in HA using a local polling with the rest platform. i used this github repo as a starting point but had to make some changes to make it work in the new energy dashboard. if you want me to go through the changes let me know.