You probably need a newer Camera Raw plug-in. Do Help / About Plug-ins… / Camera Raw and what version does it say?
You should be able to update the plug-in on an internet-connected computer with Help / Updates…
This is the only way Adobe officially wants you to update to a newer ACR version, and they removed the download links they used to provide on their website; however, there is still one place they have been posting the download links, on their blog, so if Help / Updates… doesn’t work you can try the direct download link, here, which are provided for people who don’t have an internet connection on their Photoshop computer:
Thank you Sir - the blog led me to the solution!