Search for specific ID

Can you please provide some better context

When I try to save a record, I get the following message

I cannot seem to find the item in question, is there a place where I can search for the unique identifier?

Hello,

You are encountering the error 'Item with unique identifier "***" not found.' There is probably a column in the metadata that references this UID, but it doesn't actually exist.

Try finding it in the metadata of the object where this error occurs and comment it out.