It would be nice if you could select anything
The area selection doesn't work anyway, so it doesn't matter whether you selected a date or not. In addition, the nice drop-down calendar carefully doesn't display the rightmost columns to prevent anybody from selecting future months. Mind you, it doesn't actually do anything except report a programming error if you select any date that it does display.
In short, the page doesn't work at all.
Since its "developers" obviously never did any unit tests, let alone system testing, I hereby claim my system tester's fee.