Unable to add user with a Limit Group in SolusVM 2: Server Error

Symptoms 

Unable to add user with a Limit Group in SolusVM 2. The following error is displayed upon adding a user with a Limit Group:

SVM_ERROR: Server Error

Cause

SolusVM 2 bug with ID #SIO-4713 which was fixed in SolusVM 2 version 2.0.0-27449

Resolution

Update SolusVM 2 to the latest mainline version.