when try to DID forwarding on Ring group call flow, then it displaying in fs_cli error

Steps :- 

1. Login as admin.
2. go to Get addon > Community.
3. install Ring Group addon.
4. now re-login as admin.
5.  now go to Inbound > Ring group.
6. create a Ring Group.
7. now Set DID destination as Ring Group.
8. now Registered SIP devices.
9. Now Dial DID number and observe :- 

Actual result :- when try to DID forwarding on Ring group call flow, then it displaying in fs_cli error

Expected result :- Call should be working fine as expected.

Note :-  I have test in fresh setup server. 

See fs_cli  log :- https://pastebin.freeswitch.org/view/7938b081