ORA-28001: the password has expired

sqlplus /nolog 

SQL> connect / as SYSDBA 

Connected.

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check "PASSWORD_LIFE_TIME" by

Sql > select * from dba_profiles;

Set to Never expire

Sql> ALTER PROFILE DEFAULT LIMIT PASSWORD_LIFE_TIME UNLIMITED;

Then reset the password of locked user

Sql> alter user myuser identified by mynewpassword account unlock;

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