Setting Databaseitem to "No" should do the trick, as long as your block is a database-block and not filled by a cursor or is procedure-based. In general, if the item is no longer valid i would tend to remove it and also all references to the column.
Thank you for the reply. You were absolutely right. I actually found more data items in different blocks referencing that same column so when I tested the first one, I still got the error. When I switched all 3 to 'No' my errors went away. My fault sorry!
I would prefer to remove all the references myself and I hope that is what we end up doing, but I needed this fix more so to test another issue. Thanks again.