Why isn't AdSense showing on the homepage?

Question

Google Adsense

Google AdSense does not show only on the main page, but on the rest everything is fine. el-sozduk.kg if you pull out the address of the frame , that is, the parameter url=http//www.el-sozduk.kg/ if you change it by adding, for example , ?rand=100 , then the ad will appear.

As you can see, access is open for display.
The second site where the same ad block is used. bizdin.kg does not show on many pages there, not only on the main page.