[keycloak-user] Database migration error

Hi everyone, I'm trying to upgrade Keycloak 1.2.0 Final to a newer version, encountered the following error while the system tries to update the database: 00:55:20,179 ERROR [org.keycloak.connections.jpa.updater.liquibase.LiquibaseJpaUpdaterProvider] (ServerService Thread Pool -- 60) Change Set META-INF/jpa-changelog-1.3.0.xml::1.3.0::bburke@redhat.com fail ed. Error: Can't DROP 'FK_PMConfig'; check that column/key exists [Failed SQL: ALTER TABLE auth_table.PROTOCOL_MAPPER_CONFIG DROP FOREIGN KEY FK_PMConfig]: liquibase.exception.DatabaseException: Can't DR OP 'FK_PMConfig'; check that column/key exists [Failed SQL: ALTER TABLE auth_table.PROTOCOL_MAPPER_CONFIG DROP FOREIGN KEY FK_PMConfig] I have tried upgrading to 1.3.1 as well as to 1.7.0 directly, but the same error message was shown. Can someone point me in the right direction? Thank very much! Boken.