If you are having this error is due to a safety feature to prevent you from delete data without confirm effectively that is really to delete.
You have 2 ways to resolve this issue, one is to put a dummy condition in the statement and other is to disable this security. Please consider that after disabling this feature all deletes will be made, even if you do it to a database by mistake.
On the statement you just add the condition below
Disable all security on deletes from Kalipso to databases. Go to Project Settings.
Choose other and disable the security as shown below.