The message means EXACTLY what it says.
Due to the current unavailability of clairvoyants and mind-readers in the forum, we respectfully request you supply sensible, complete details.
If you give complete and detailed information about your setup and the issue at hand,
such as your platform (Mac or Win),
exact versions of your OS, of Photoshop (not just "CS6", but something like CS6v.13.0.6) and of Bridge,
machine specs, such as total installed RAM, scratch file HDs, total available HD space, video card specs, including total VRAM installed,
what troubleshooting steps you have taken so far,
what error message(s) you receive,
if having issues opening raw files also the exact camera make and model that generated them, etc.,
someone may be able to help you (not necessarily this poster).
A screen shot could be very helpful too.
Please read this FAQ for advice on how to ask your questions correctly for quicker and better answers:
The message basically is telling you that your computer's operating system is too old.