What is "one cloud", and how were you uploading images to it? It sounds like what you did was create a new catalog. If you go to File->Open Recent you can see a list of other catalogs that you may have used recently. If you created a new catalog then you can open your main catalog and import from the new one. But first, let's see if you have a different catalog you can open.
Thank you for responding firstly, JimHess. It is called "OneDrive". I went to recent places, the only info is on the dates of the day of course & I don't see or recognize the program that would have my pictures lightroom catalog.ircat is the only one. I have to leave the site for now. I greatly appreciate your help. I will check back in on Sunday. Thank you in advance. Gloria