SInce upgrading from version 2.0.33 the galleries do no longer load. It will show ones but after reload the alleries do no longer show. I have installed a 2.0.33 version next to the new version. If I activate the 2.0.33 version everythin works fine.
Problem solved. I added the last version for our product. The error occurs because the cache from NextGen. After each change made in the template or you delete some image, save and then go to WP Admin – > Gallery -> Other Options -> Miscellaneous -> Clear image cache , the changes will appear on the site.