Privacy Banner keeps popping up with Blogger

Hi everyone,
I just included a blog made with Google Blogger using iframe in my page. All works very well except for the privacy banner. Every time I navigate within the blog, the banner pops up again. I found no way to stop that.

I have the privacy settings active on the page, with the standard banner from Sparkle. No problem here.
The banner which pops up on the blog site is a different one and sends to the Google privacy page.
In the settings of Blogger there is no mention of this banner.

Thank you for any hint.

Rainer