How to solve ORA-00257 archiver error

First verify the space of Archive logs :

show parameter db_recovery_file;

select name

, floor(space_limit / 1024 / 1024) "Size MB"

, ceil(space_used  / 1024 / 1024) "Used MB"

from v$recovery_file_dest

order by name

if you want to grant more space for Archive logs :

alter system set db_recovery_file_dest_size = 5G;

To delete Archive log older than one week use the command by connecting RMAN:

DELETE COPY OF ARCHIVELOG ALL COMPLETED BEFORE 'SYSDATE-7';