Nextgen .30 still Invalid Display

Hi,

after upgrading to NextGEN 2.0.30, no gallery is longer displayed at frontend. I′ve got the error at header and at the articles: array(1) { [“display_type”]=> array(1) { [0]=> string(20) “Invalid display type” } } and invalid display type.

At Backend the slider option dialogs aren′t shown. Only show me the shortcode.

I′d used before 1.9.x

For example this page: https://www.coupe-s.de/treffen-events/pneuhage-tuningday-2013-in-schramberg

Thanks for your help!