ORA-04098: trigger ‘SYS.GGS_DDL_TRIGGER_BEFORE’ is invalid and failed re-validation

SQL> alter user goldengate default tablespace ogg_tbs;
alter user goldengate default tablespace ogg_tbs
*
ERROR at line 1:
ORA-04098: trigger 'SYS.GGS_DDL_TRIGGER_BEFORE' is invalid and failed re-validation


SQL> @ddl_disable.sql

Trigger altered.

SQL> alter user goldengate default tablespace ogg_tbs;

User altered.