The error says that you are trying to add a record to a table with a value for a field that is defined as UNIQUE with the same value as one already in the database. I would expect the error to tell you which field that is. If you then look at the data you are trying to insert you should be able to see the problem.
If you can't see us the problem then show us the full error message, the database schema (column names and types) and what a debug node shows when displaying the data going into the database node.
Is this a continuation of your previous thread?
