The FZ330 was first supported in Lightroom 6.1.1. There is no update for that camera for Lightroom 5. It'll never be supported in Lightroom 5.
Pay to upgrade to Lightroom 6
Pay to join the Photography Plan and get Lightroom CC
Free option: Stay with Lightroom 5, download the free Adobe DNG converter, convert all Raw files from the FZ330 to DNG format then edit the DNG files in Lightroom 5 Photoshop Help | Digital Negative (DNG)