Not seeing the error on clicking service - request as user .
But I have one doubt the group is assigned tag "Provisioning Scope = something " tag
but it is not showing up under "Smart management" like in the "role_details" attachment .
Can you check the appliance once :
https://10.8.198.117/
group - custom1
user - shveta/redhat
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://access.redhat.com/errata/RHSA-2018:2184