Java Runtime Not Located, but it's different from the usual

I logged into MineCraft a few days ago and everything was fine. I updated the game today and got an "Unable to locate the Java Runtime". I looked at other articles on this site but they did NOT match up with my issue. When I clicked onto more details, instead of telling me where the path went wrong it said:
Unable to locate the Java runtime.
Filename on disk:
Path: .
Exists: directory

I saw another person who posted this issue, but their complaint was filed under the previously mentioned path issue and overall ignored. I expect the same to happen to this, but I may as well reach out and try. Thank you for your time, and if you have any suggestions please tell me.