Error while importing datasets

Hello. I’m trying to import data into DHIS2 version 2.40.2, but keep getting this error. The dry run shows successful, but the main import throws this error. What could be a possible issue?

Hi @Joycee

Welcome to the DHIS2 Community!

It’d be great if you could share the steps to reproduce this issue on play.dhis2.org instance?

Thanks!