Please use one topic for only one question.
Please open this link http://www.casa-dentalis.de/wp-content/themes/nordis/pixtheme/admin/js/custom-admin.js and check at the end of page shoud be the next code http://joxi.ru/DmBn5oMhJ60ZWm
If no, refresh page with cmd+R or try to clear safari cache. If it appears try to save changes once again.
