Hi @elmoujarrade,
Sorry for taking long! A similar CoP post by @HaydnJ was posted before ((FIXED)Getting Error on one instance when attempting to save Program and Program Stage translations "A collection with cascade="all-delete-orphan" was no longer referenced by the owning entity instance: org.hisp.dhis.program.Program.notificationTemplates")
The error you are seeing is a bug issue which has been fixed in latest updates. What build are you using for version 2.36 instance? It should be fixed for (2.39, 2.38.0, 2.36.11, 2.37.7).
Here’s the related Jira issue which you can find a workaround if you are using an earlier version: https://jira.dhis2.org/browse/DHIS2-12624
Thank you please feel free to continue posting to the community and report the result here.
