This is an AVCHD camcorder.
So you must:
a) Connect the camcorder to your computer via a USB connection;
b) Put the camcorder into Play mode (and possibly configure the camcorder to connection to a computer);
c) Go to Premiere Elements' Get Media/From Flip, AVCHD, Cameras and Phones to open the Video Importer;
d) Set the Video Importer source to your camcorder and then select the clips you want to import.
Is this the process you used to get your video from the camcorder?
Naturally the more details you offer, the more likely we'll be able to help you.