(Solved) Need help creating a date helper

Hi there,
I’m trying to create a data helper, but I’m not succesful in doing so.
Any help in what I’m doing wrong is appreciated.

I’ve managed. I’ve checked the “Date and time” checkbox, pressed create and then it created the date helper. After that I went into the properties of the helper, changed “Date and time” back to Date et voila! I guess it’s a bug.