message said my catalogs were corrupt and now LRc won't open... ???? now what

Try restoring a recent backup of your catalog file (unzip it first), and see if that will open.

Hi @Fancy_Dewdrop778a,

Sorry you’re running into this. Before we make any changes to the catalog, could you share the exact error message Lightroom Classic displayed when it reported the catalog was corrupt? A screenshot would be helpful if you still have it.

Since Lightroom Classic now won’t open, please try launching it while holding Option (macOS) or Alt (Windows). This should open the Select Catalog dialog instead of automatically opening the most recently used catalog.

If that dialog appears, don’t create or overwrite anything yet. Please let us know:

• Your Lightroom Classic version and macOS/Windows version.

• Whether Lightroom Classic reaches the Select Catalog dialog using Option/Alt.

• Whether the catalog itself (.lrcat) was moved to the external drive, or only your photo folders were moved.

• The exact location of the catalog now (internal drive or external drive).

• Whether you have a recent Lightroom Classic catalog backup from before the problem started.

• If the catalog is on an external drive, what format does that drive use (APFS, exFAT, NTFS, etc.)?
  
  

If you have a recent catalog backup, please don’t overwrite your current catalog with it yet. Keep both copies intact while we determine what happened.

Also, please don’t delete the .lrcat, .lrcat-data, previews, or other files alongside the catalog while we’re troubleshooting.

Once we know whether Lightroom can reach the catalog-selection screen and see the exact corruption message, we can determine the safest recovery path.

Best,
Anshul Saini