Unable to add permissions to a group

[jlequen]

Description

Unable to add permissions to a group
Error message : An unknown error has occurred! Please try again later.

Environment

1. OS : Ubuntu 18.04
2. OpenCTI version: 3.0.0 (fresh install) Docker
3. Grakn :1.6.2
4. Elasticsearch : 7.5.2
5. RabbitMQ : 3.7.17
6. Redis : 5.0.5
7. MinIO : RELEASE.2019-10-12T01-39-57Z
8. OpenCTI client: frontend

Reproducible Steps

Steps to create the smallest reproducible scenario:

1. Install OpenCTI (docker)
2. Create New Group
3. Update Group
4. Go to "Permissions"
5. Add permission

Actual Output