ZakaullahMuhammad As Imogen mentioned, revenue data updates the following day so there is typically a delay on reporting. However, the reason you're yet to earn is because you have a low number of visits and most of your visits come from a country with low paying ads, Pakistan.
As you bring in more visitors over the coming days you should accrue some revenue. Just note this is going to be limited if the majority of your visitors come from countries with low paying ad rates, so you may want to focus SEO efforts on bringing in visitors from the EU or US where ads tend to be higher paying.
The reason you're seeing 'pages without revenue' is because the site hasn't earned any revenue yet. As the site grows and begins to earn revenue, this warning will disappear.