Link to other apps in a Designed For Families Google Play app

Hi, I have an app in Google Play inside Designed For Families (DFF) section.
Yesterday I send an update of this app with a link to my list of apps in Google Play but it was rejected with this message:

Issue: Violation of Families Policy Requirements
Apps that contain elements that appeal to children must comply with all Families Policy Requirements. We found the following issue(s) with your app:

Ad Content
We found an issue with the ad content in your app:

The ad content in your app is not consistent with the app’s content rating. To resolve this issue, please remove content not consistent with your app’s rating and/or retake the content rating questionnaire. If you monetize your app, please ensure you’ve excluded ads from sensitive categories. For more details, you can refer to the “Ads” section (#3) of the Families Policy Requirements.

In my Google Play list of apps there is an app that is for users 12+ years old, it seems this is the problem, so what is the corrrect way to link other apps in a DFF app? one by one? any ideas? thanks.

Maybe the list of apps is not showing that it is a list of ads? I had to write “ad” to my external game links.

Thanks for your reply, can you send me a pm with any of your apps? thanks a lot