DB Loader not working with Oracle Connection

I am continuously getting this error while using DB Loader node to load data from a CSV file to an Oracle Database -

Configure failed (NullPointerException): Cannot invoke "org.knime.database.node.io.load.DBLoaderNode2Factory.get()" because the return value of "java.util.Map.get(Object)" is null

Knime Version - 5.2.3

Here is the image of the workflow -