Importing and Exporting

The Error message is very clear on the failed import. The Drive and or folder you have selected in the Destination section of the import dialog window is not writable. Either your username does not have the correct permissions to access and write files to that Drive/Folder or the drive/folder you have selected does not have enough Free Space for LrC to copy the file to.

Try the import again and Make Sure you look at and select a different Drive/Folder in the Destination section.

As for the Export it looks like you are Exporting As "Original" because all the files that failed to export have either .NEF or .DNG as the File Extension. Why are you doing that? Is this for a Backup?

If it is that is the Wrong Way to make backups of your original image files.

Exporting should be in either JPG or TIF format normally.

I suggest you start by reviewing some of the very good LrC tutorials on the Adobe help system.

Lightroom Classic tutorials | Learn how to use Lightroom Classic

How Lightroom catalogs work

Sorry. Here are the screenshots.

In the future, So people don't have to download the image you have attached, please use the Insert Photos icon found in the Tool Bar of the Post and Reply text entry dialog window as pictured below.
Since you Can't Edit your original post to remove the Attached screen shot Please include the screen shot you attached to a new reply to this conversation by clicking the Blue Reply button under your original post and use the Insert Photos icon in the tool bar.
The Insert Photos icon is this one in the Tool Bar.


Thank you.