See that faq:
Your new camera can't be supported by the (relatively old) Elements 9.
You need ACR version 7.2 and only PSE11 can be updated to 7.2 or 7.3.
As explaine in the above paper in the following paragraph:
What if my camera is not compatible with my version of Photoshop Elements?
you can use the free dngconverter software to convert your raw files in batches to the DNG format that PSE9 can read.