oracle error - ORA-00268: specified log file does not exist 'string'

ORA-00268:	specified log file does not exist 'string'
Cause:	The given redo log file does not exist.
Action:	Check the spelling and capitalization of the filename and retry the command.

oracle error - ORA-00267: name of archived log file not needed

ORA-00267:	name of archived log file not needed
Cause:	During media recovery, the name of an archived redo log file was entered, but no name was requested.
Action:	Continue media recovery, but do not enter a new log name.

ORA-00266:	name of archived log file needed
Cause:	During media recovery, the name of an archived redo log file was requested, but no name was entered.
Action:	Mount the correct redo log file and enter its name when it is requested.