2631126 - sp_restore_system_role error

Trying to recreate a system role with sp_restore_system_role but get errors

Msg 102, Level 15, State 181:
Server '<server_name>', Line 1:
Incorrect syntax near '='.
Restoring '<system_role>' in progress.
Msg 11105, Level 11, State 1:
Server '<server_name>', Line 1:
No such user/role '<system_role>' exists.
Msg 15967, Level 16, State 1:
Server '<server_name>', Procedure '<system_role>', Line 396:
The 'GRANT' command failed when updating permissions to system roles in database
'master'. The roles in the database may not have the correct permissions.
(0 rows affected)
(return status = 0)

Adaptive Server Enterprise

Fix role, user-defined role, system-defined role, sa_serverprivs_role , KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , Problem