Das Paket konnte nicht installiert werden. Dem Theme fehlt das style.css Stylesh

Hey oeconomedicus!

Try logging into your server via FTP and then completely delete all copies of Enfold that you see. Next download a fresh copy of Enfold from themeforest and follow these instructions, http://kriesi.at/documentation/enfold/portfolio-item/install-enfold-theme-with-ftp/, for installing it via FTP.

Or if you know all copies are gone from your WordPress theme directory, /wp-content/themes/, then you can try downloading a fresh copy from themeforest and then upload it in Dashboard > Appearance > Themes > Add New.

Cheers!
Elliott