Oracle account error ORA_28000

ORA_28000: The account is locked
Wait for PASSWORD_LOCK_TIME or contact your DBA
ORA-28001: The password has expired
Change the password or contact your DBA
ORA-00988: Missing or invalid password(s)
Use double quotes for the password (e.g. alter user scott identified by "!alex";)
ORA-01017: Invalid username/password; logon denied
Contact your DBA if the problem still persists