Speed Optimization – Problems with WP Optimize

Afer finishing my HP (http://www.mvgaissau.at/wordpress) now I would like to speed up the Site.
I followed your recomendations at http://documentation.hb-themes.com/highend/#theme-optimization

Using “WP Super Cache” and “Autoptimize” speeds up my Site significantly – but javascrip and CSS Optimization ends in some problems

Javascipt
After this optimization there are no Scrolldowns in Menus. Also a lot of other functions did not work.

CSS
Afer this optimization all my “Custom CSS – Changes” did not effect.

Christoph