ORA-00265: instance recovery required, cannot set ARCHIVELOG

SQL> startup mount force;
ORACLE instance started.

Total System Global Area 2097152000 bytes
Fixed Size                  1268460 bytes
Variable Size             704644372 bytes
Database Buffers         1375731712 bytes
Redo Buffers               15507456 bytes
Database mounted.
SQL> alter database archivelog;
alter database archivelog
*
ERROR at line 1:
ORA-00265: instance recovery required, cannot set ARCHIVELOG mode

SQL> alter database open;

Database altered.

SQL> shutdown immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> startup mount;
ORACLE instance started.

Total System Global Area 2097152000 bytes
Fixed Size                  1268460 bytes
Variable Size             704644372 bytes
Database Buffers         1375731712 bytes
Redo Buffers               15507456 bytes
Database mounted.
SQL>
SQL>
SQL>
SQL>  alter database archivelog;

Database altered.

SQL> alter database open;

Database altered.
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