oracle error- ORA-00314: log string of thread string, expected sequence# string doesn't match string

ORA-00314:	log string of thread string, expected sequence# string doesn't match string
Cause:	The online log is corrupted or is an old version.
Action:	Find and install correct version of log or reset logs.

oracle error- ORA-00313: open failed for members of log group string of thread string

ORA-00313:	open failed for members of log group string of thread string
Cause:	The online log cannot be opened. May not be able to find file.
Action:	See accompanying errors and make log available.

ORA-00312:	online log string thread string: 'string'
Cause:	This message reports the filename for details of another message.
Action:	Other messages will accompany this message. See the associated messages for the appropriate action to take.