delete user is not allow because netbox_secretstore plug-in

[kzhang1310]

In netbox, select the username from Admin-> Authentication -> Users
Click Delete 1 user
with following error message

<class 'django.db.utils.IntegrityError'>

update or delete on table "auth_user" violates foreign key constraint "secrets_userkey_user_id_13ada46b_fk_auth_user_id" on table "netbox_secretstore_userkey"
DETAIL: Key (id)=(40) is still referenced from table "netbox_secretstore_userkey".

Python version: 3.9.16
NetBox version: 3.6.5
Plugins:
netbox_napalm_plugin: 0.1.7

We have uninstall the secretstore plugin long time ago. how do we clean up the un-use netbox_secretstore database table

Thank you in advance