Which version of Lightroom do you have?
Which operating system : windows or mac?
Could you please share the exact word-for-word error message?
Share a screenshot, if possible.
Do you have write permissions in that folder? Generally it is bad practice to put files in the root level of your startup hard drive.
Hi Jao vdl
Are you saying a file four folders off the root directory is the same as a root.
No, but the "years" folder is straight in the C: root and is a non-standard folder there. Windows since v7 does not allow even administrators to create files in root as a security measure. It is possible that in a system update the permissions on the whole root folder structure got reset to default non-write permissions so it is probably a good idea to check permissions on the deeper folder to check if you still have write permissions there.