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?)? No
Joomla! version: 2.5.24
PHP version: (unknown)
MySQL version: (unknown)
Matukio version: 4.5.4
Direct link to the page that shows the issue: (unknown)


Description of my issue:
Hello,
I've just installed Matukio, created some categories and tried to create an event but....
- if I save the event without categorie, the component tell me "saved" but I can't see on the list (see image1)
- if I choose a categorie for the new event, I have the error in image2
- on frontend, i've created a menu to the event list but have the error in image3
What's wrong?
Best regards,
Vanni