Unable to set NEXTCLOUD_TRUSTED_DOMAINS env variable on Truenas

When I add the TRUSTED_DOMAINS env variable. Whether it is a reinstall or update of the app. I get the following error:

Environment Variable [NEXTCLOUD_TRUSTED_DOMAINS] in [envList] tried to override the Environment Variable that is already defined in [Secret - nextcloud-creds]

Please advice to to set environment variable using the GUI.

nextcloud App Version: 29.0.3
Chart Version: 2.0.10
Last Updated: N/A
Developer: N/A
Catalog: TrueNAS
Train: charts

TRUENAS System Information
Platform: Generic
Version: Dragonfish-