bjorne51 on "[Plugin: The Events Calendar] Contact form error"

Hi, we've tried to use the Add Contact form in the before calender object.
The 1st time it worked, but when I tried to use it as a user, and filled in the form and send it, it chrashed and I arrived in the error page.
After that, whnever I go back to Calender settings page, and try to open up the form again, it doesnt recognize it, and starts to create a new form instead, and when I try to use it now, the code is shown for the user instead of the form.
If I try to make a new one, I only get the same result.
I also tried to inactivate the plugin and activate it again.
Here is the code:
[contact-form to='carina.i.edman@gmail.com' subject='Kursanmälan'][contact-field label='Namn' type='text' required='1'/][contact-field label='Meddelande' type='text' required='1'/][/contact-form]
Whats wrong

http://wordpress.org/plugins/the-events-calendar/