Under rare circumstances, it's possible for an in-memory cache to deviate from what is stored in sql, which can result in inconsistent information like this. So I would suggest restarting the LFS service on the Laserfiche server as a quick troubleshooting step.

Beyond that, where exactly are you seeing that error message? "Error saving file" is a message in scanning, but the capitalization differs from what is in your screenshot, and I'm having trouble finding a match for the second part of the message. Can you provide a larger capture of the error message that includes more application context?