Hey, don't you worry... its perfectly normal... Google takes upto 14 days to review your pages and to give a reply,
The "error" is been shown on your account because hubpages has not got any confirmation on your adsense account (u've not yet got). So, u don't have worry about that either.
All you can do is do some good, informative, content rich hubs while u waite for your adsense approval.
Hope that helped.