Hi, thank you for contacting JustAnswer.com. My name is Russell. I will do my best to provide the right answer to your question.
What you are missing is the UB-10D charger. (Though you can also, until you get your replacement, charge the camera - rather more slowly - through a USB cable connected to your camera at one end, and a computer with a USB port at the other.)
Here are two sources for a replacement:
The price is about $10 to $15 without shipping/tax/etc.
You could, of course, also look for a replacement AC Adapter/charger at a Sony camera -selling shop in your region. If you would like addresses for such shops, please Reply To Expert with your local zip code.
If this answers your question completely, please rate my answer, so that this case may be closed. Thanks.