it show this msg
Specified argument was out of the range of valid values. Parameter name: Not a valid Win32 FileTime.
anyone could suggest how could I do?
Looks like a technical issue. Please contact the Shozam Helpdesk, give them details on when you get the message (e.g. do you still get it if you start a new gallery from scratch with just a couple of images and no custom options?) as well as your computer configuration.