5 days back my dataguard was working fine, but now archives stopped shifting on the standby location

Hi,

5 days back my dataguard was working fine, buit now it is giving issue, archives are not shifting on the standby location and when i saw on prod under the view v$archive_dest the value of dest_id 2 its status is "error":

select DEST_ID,status from v$archive_dest;

   DEST_ID STATUS
---------- ---------
         1 VALID
         2 ERROR
         3 INACTIVE
         4 INACTIVE
         5 INACTIVE
         6 INACTIVE
         7 INACTIVE
         8 INACTIVE
         9 INACTIVE
        10 INACTIVE

u can see above output, please help me ASAP.

Regards,

Mukesh