Cause: An attempt was made to create a non-migratable session in a server
group that is owned by a different user.
Action: A server group is owned by the first user who logs into a server in the
server group in non-migratable mode. All subsequent non-migratable mode
logins must be made by the user who owns the server group. To have a
different user log in non-migratable mode, the ownership of the server group
will have to be changed. This can be done by logging off all current sessions
and detaching from all existing servers in the server group and then having the
new user login to become the new owner.