New Bug Encountered: When Adding Row in Another Table from One Table

Hello, I am trying to Use Action Data: Add a new row into another table from one table. While doing this I get error There is already a row with the key 12/13/2019 12:23:53
Why is this so? Can anybody help me with this? NOTE: I am using Date and Time as Key

When adding a new row, are you copying the DateTime value as well? Maybe you should not copy it because it already exists. If you have an initial value like NOW(), you don’t need to copy it.

Yes I have NOW() into another table and I’m not copying date-time, still it’s showing me error.