ORA-00980: synonym translation is no longer valid.
Cause: A synonym did not translate to a legal target object. This could happen for one of the following reasons:
1. The target schema does not exist.
2. The target object does not exist.
3. The synonym specifies an incorrect database link.
4. The synonym is not versioned but specifies a versioned target object.
Action: Change the synonym definition so that the synonym points at a legal target object.