Upgrade from Satellite v 5.5 to Satellite v 5.6 fails with error "DBD :: Pg :: st execute failed: ERROR: there is in the relationship "rhn_config_macro""

Issue

• Upgrade from Satellite v 5.5 to Satellite v 5.6 fails with bellow error:

** Upgrade process requires the certificate to be activated after the schema is upgraded.
* Enabling Monitoring.
DBD :: Pg :: st execute failed: ERROR: there is in the relationship "rhn_config_macro"
LINE 1:     UPDATE rhn_config_macro
                    ^ at /usr/bin/spacewalk-setup line 1284.
Issuing rollback() due to DESTROY without explicit disconnect() of DBD::Pg::db handle dbname=rhnsat at /usr/bin/spacewalk-setup line 1284.