problem with mobilecore - plz help me

Hello
I use mobilecore.
And i see that mobilecore show only one ad, and until user don’t install this ad, don’t show other ad. This is very bad.
Is it possible to solve this problem?

thanks a lot

Do you mean they always show the same ad all the time?

yes, when user install it, then new ad is show. but if user don’t install first ad, don’t show other ad.

It was due to no ad inventory. Nothing you can do about it.