We work inside Neos for document management, but occasionally a Neos-linked file will be deleted on the SharePoint/OneDrive side. This creates a dead link to that file ("missing" file). The prompt when a dead link is clicked is to attempt to locate the file on SP. Better option would be to either locate the file (for true dead links) OR delete the link from Neos (for docs that were INTENDED to be deleted, just happened to be deleted outside the system).