oracle error- ORA-00312: online log string thread string: 'string'

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.

oracle error- ORA-00311: cannot read header from archived log

ORA-00311:	cannot read header from archived log
Cause:	An I/O error occurred when attempting to read the log file header from the specified archived redo log file.
Action:	Other messages will accompany this message. See the associated messages for the appropriate action to take.

ORA-00310:	archived log contains sequence string; sequence string required
Cause:	The archived log is out of sequence, probably because it is corrupted or the wrong redo log filename was specified
Action:	Specify the correct redo log file; then retry the operation.