ORA-00308: cannot open archived log

Standby database recovery stopped with the following errors:

Wed Aug 17 10:43:35 2022
Managed Standby Recovery starting Real Time Apply
Parallel Media Recovery started with 8 slaves
Waiting for all non-current ORLs to be archived…
All non-current ORLs have been archived.
Media Recovery Log /fra/PRDB/archivelog/2022_08_11/o1_mf_1_68911_kh8kkwp0_.arc
Error opening /fra/PRDB/archivelog/2022_08_11/o1_mf_1_68911_kh8kkwp0_.arc
Attempting refetch
MRP0: Background Media Recovery terminated with error 308
Errors in file /u01/app/oracle/diag/rdbms/prdb/PRDB/trace/PRDB_pr00_17264.trc:
ORA-00308: cannot open archived log '/fra/PRDB/archivelog/2022_08_11/o1_mf_1_68911_kh8kkwp0_.arc'
ORA-27037: unable to obtain file status
Linux-x86_64 Error: 2: No such file or directory
Additional information: 3
Managed Standby Recovery not using Real Time Apply
Recovery interrupted!
Some recovered datafiles maybe left media fuzzy
Media recovery may continue but open resetlogs may fail
Completed: ALTER DATABASE RECOVER MANAGED STANDBY DATABASE THROUGH ALL SWITCHOVER DISCONNECT USING CURRENT LOGFILE
MRP0: Background Media Recovery process shutdown (PRDB)

Check the missing archive log does exist:

$ ls -ltr /fra/PRDB/archivelog/2022_08_11/o1_mf_1_68911_*_.arc
-rw-r-----. 1 oracle oinstall 910116352 Aug 11 09:58 /fra/PRDB/archivelog/2022_08_11/o1_mf_1_68911_kh8kjvh9_.arc