Are you trying to update / deleted multiple records that are returned based on your filtering criteria?
If so, then can you check on "Configure Steps", go to the tab "All Steps" and tell me if the following option is checked off:
"Allow multi-record matches on updates/deletes"
If that is already checked off and you're still receiving that error, you may have a database where trying to perform multi-record updates / deletes is not allowed or the integration user does not have permission.
"Allow multirecord matches on updates/deletes -If checked, if Insight finds a match for more than one record during an update or delete, the operation is performed on all matching records. The following rules apply:
If this feature is not selected (the default), and more than one match is found, the operation is not performed on any of the records, and an error is logged.
This feature is only available if there are update and/or delete steps defined.
For multitarget DTS files, all targets must allow multirecord updates.
"Success: more than one row affected. This outcome only appears when multirecord updates are valid.
Operation succeeded and affected or found more than one row. Occurs most frequently with updates, deletes or seeks. If multirecord operations are blocked at a database level, then you should never see this outcome for updates or deletes. Instead, these multirecord operations are get trapped and returned as failures.
If you need any further assistance, please feel free to create a case with Scribe Support by clicking on the "My Cases" button on the navigation bar and then clicking on "Open Scribe Insight Case".