Can not edit new event

Mandatory information about my setup:

Have I searched the tickets before posting? yes
Have I searched the forum before posting? yes
Have I read the documentation before posting (which pages?)? yes
Joomla! version: 3.2.1 Stable
PHP version: 5.3.10-1ubuntu3.14
MySQL version: 5.5.38-0ubuntu0.12.04.1
Matukio version: 5
Direct link to the page that shows the issue: Is in backend


Description of my issue: After creating a categorie I want t create an new evenent, clicking on "new event" is damaging the template and no further actions are possible

(HOW TO REMOVE/REPLACE WRONG ATATCHMENT??)