Hmm if this is the first time you logged into the website it means it now first registered you :/

There's no APR yet since there's no price for zing, you should however start accumulating zing hourly now since you logged in, if it still doesn't show anything after 1-2h please let us know, but so far there haven't been any reported errors about it so I assume it's due to not having logged in until now.