It is found that several WRH tables are locked, what should I do?

Found that these tables were locked

SQL> select b.owner,b.object_name,a.session_id,a.locked_mode 2 from v$locked_object a,dba_objects b3 where b.object_id = a.object_id;OWNER OBJECT_NAME SESSION_ID LOCKED_MODE------------------------------ -------------------------------------------------------------------------------- ---------- -----------SYS WRH$_EVENT_NAME 331 3SYS WRH$_LATCH_NAME 331 3SYS WRH$_STAT_NAME 331 3SYS WRH$_PARAMETER_NAME 331 3SYS WRH$_METRIC_NAME 331 3

AWR is not turned on either

An error is reported when the process is terminated

SQL> alter system kill session '331, 15';alter system kill session '331, 15'ORA-03113: end of file for communication channel

Help how to deal with this!