files mysteriously disappeared

[joyful-peace-mtp]

all my files mysteriously disappeared out of Lightroom. So I uninstalled the program and reinstalled it, but the files don't come back. It's like my hard drive is not connecting with Lightroom. Does anyone have any ideas for me?

[Rob_Cullen]

Knowing that you are using Lightroom-Classic would be helpful.

A common cause is that LrC has created a new catalog that does not yet have photos imported.

Look for other catalogs-

In LrC  go  Menu > File > Open Recent,  and check for other catalogs that might appear in this menu.

Or, in Mac Finder search for .LRCAT (catalog) files that you can open by a [Double-Click].

Where do you store your Catalog file?

Where do you store your camera files?

Inserting screen-clips in  your posts of your LrC app screen can be useful.

[dj_paige]

You have most likely opened the wrong catalog, accidentally. Search for catalogs, using your operating system's search function, to search all folders on all disks, whose file name ends with .LRCAT