I think I need to reinstall Lightroom. I can't get it to open. I am a Adobe CC subscription member and run LR ans PS on Win 8.1 platform. ( PS is opening correctly.)
Error Msg: "The catalog cannot be opened due to an unexpected error?" What error?
Yes, I'm really, really, new at this business!
This seems to be an issue with that catalog.
Launch Lightroom with the Control key pressed and choose the option to create a new catalog
If you are able to create a new catalog, then go to File menu> Import from another catalog > choose your main catalog to import the data from.
Or, you might want to look for a recent backed up catalog and check if you are able to open that.