So, you can either use the Sony converter bundled with your camera,
or buy the current PSE2021,
or the free solution to download the free Adobe DNGconverter, a standalone program that can batch convert a whole folder of your raw files to the universal DNG raw format that PSE14 can read and process. An additional batch operation but free and with the same quality/
Your camera requires ACR 10.1. I haven't tried it myself with Elements 14, but it may be possible to update your Camera Raw plug-in using the workaround found here. I suggest you try downloading the plug-in for ACR 10.5. If you decide to use this workaround, please report back if it works for you.