No ads from kontera

After almost two months my Kontera advertiser are not giving any earnings.I have place this ads widget two months ago but it seem they have not yet receive any handsome clicks,though traffic stat is good enough.

I have searched their advertiser list,but don't know if they has enough advertiser to advertise anything with their ad tag.They are offering me just nothing,whether ads are creating inference for reader while reading my post.So I have decided not show kontera ads anymore for my blog Blogging Park.