Ads not showing on your blogger Blog

It's been like six months since I've created this blog. I got my adsense account approved via Youtube.
Then after writing good posts my blog was eligible for Ads. Then I put an Ad code but after 1-4 days I get to know that instead of ads there are blank spaces. I reported too but it didn't work out.
While creating ads for my Blog they seem fine but after putting them online no ads were shown just blank spaces.

(After Doing Research of 3 months I finally found the solution)

1. If your account was approved through YouTube, then you can only display ads on YouTube unless you are approved for an account upgrade.
   
   "Adsense doesn't allow that anymore.
   
   
   Now, anyone approved through youtube, can only display ads on youtube. They changed the way the system works because too many people were placing ads on blogs that violated policies and ended up having their entire adsense account disabled.
   
   
   The new system prevents people from displaying ads on blogs unless they upgrade their adsense accounts." - Expert Answer

Account upgrade?
Ans; Don't be confused, if you see a (Hosted Account) on the top right corner that means you're account isn't upgraded. With Hosted Account you can only show ads on sites like youtube or blogger.

If you wan't to upgrade your account you need to buy a top level Doamin like (yourwebsite.com) instead of (yourwebsite.blogger.com).

How to upgrade YouTube, Blogger or other hosted account to show ads on a website?

If you signed up for AdSense through a host partner and you’d like to show ads on your own non-host partner website, then you’ll need to provide us with the URL of the site you want to monetize. You can do this via a one-time application form. Here’s how:

YouTube: If you have signed up for AdSense via a YouTube account and you’d like to show ads on other host domains, then you’ll need to provide us with a top-level domain. At this time there's no possibility of monetizing other hosted properties for AdSense accounts created via YouTube without upgrading the account by providing a top-level domain.

1. Sign in to your AdSense account.
2. Click the gear icon  and select Settings.
3. In the sidebar, click Access and authorization.
4. In the “Show ads on other websites” section, enter the URL of the site where you plan to show ads.
5. Click Submit.
6. Finally you need to implement AdSense ad code on the URL that you provided above, on a page that receives traffic.
   To implement AdSense ad code, you first need to generate the ad code. You can learn how to implement it on your non-host partner website by following our code implementation guide. Note that your ad units will remain blank until your request has been approved.

Once your request is approved, you’re welcome to place your ad code on any website that you own without any further approvals. If your application is not approved, be assured that ad serving on your host partner site will not be affected. You can continue to monetize your hosted content as normal.