Deleted Photos LR Mobile

[Gutsy4]

My external hard drive became corrupted and I restored my files to a new drive. I now see that most of my photos have been deleted when I open the LR app on my iPad. I would like to restore them to their folders, but don't want to mess up anything on my computer. I think my drive backs up to the cloud, but im not sure. What I want to avoid is creating any duplicates. 

[selondon]

Can you give some more details of your workflow so a menber of the community can help? Like.....

Are you just using Lightroom on iPad?

Do you have a subscription or is it the free version?

Do you have Lightroom on Desktop also?

If so, what version (go to Help-System Info)?

How did you import the photos into the iPad (directly, or synced from Desktop)?

[Gutsy4]

These are my export settings.  The column is there, but it is empty.  Posted a screen shot of it earlier.