Since a few days a get a error message on a item detail page:
Error: 0
DateTime::__construct() [datetime.--construct]: Failed to parse time string (30 Dezember 2013) at position 0 (3): Unexpected character
I guess, the error appears when I select the option "sunday" (in day availability) in the backend. It seems to be a problem with december days.
When I leave out the option "sunday" the calender works. But then the navigation below the calender "next month" (to december) doesn't work too (nothing happens).