Lightroom 5.7.1 was the last update to Lightroom 5. There will be no more updates to Lightroom 5. You can use the DNG converter to create DNG copies of your raw images that will open in Lightroom 5. But if you want open the ORF files it will be necessary for you to upgrade to Lightroom CC or Lightroom 6 and then make sure you are updated to at least The .9 update. Lightroom is currently at the .10 update. If you want to use the DNG converter, it is free and you might as well download and use the latest version which is DNG converter 9.10. Please indicate your operating system, and I can provide links if that is what you want to do.