1) Error in Logs: java.sql.SQLException: ORA-01436: CONNECT BY loop in user data
Run the following query to check the cycle:
select parent_key, act_key, level, connect_by_iscycle
from act
connect by NOCYCLE prior act_key=parent_key;
In case that PARENT_KEY is equal with the ACT_KEY of an organization, that data should be corrected.