ORA-00257：archiver error. connect internal only,until freed 问题解决

SQL*Plus: Release 11.2.0.2.0 Production on Mon May 25 10:10:19 2020

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Enter user-name: sys as sysdba
Enter password:

Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> show parameter recover;

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
db_recovery_file_dest                string      C:\app\m1885\flash_recovery_ar
                                                 ea
db_recovery_file_dest_size           big integer 3912M
recovery_parallelism                 integer     0
SQL> alter system set db_recovery_file_dest_size=8g
  2  ;

System altered.