ORA-00604: error occurred at recursive SQL level 1

Hi All,

SQL*Plus: Release 11.2.0.4.0 Production on Sun Jun 18 08:17:54 2017

Copyright (c) 1982, 2013, Oracle.  All rights reserved.

SQL> CONN SYS AS SYSDBA

Enter password:

Connected.

SQL> SHUTDOWN IMMEDIATE;

Database closed.

Database dismounted.

ORACLE instance shut down.

SQL> STARTUP;

ORACLE instance started.

Total System Global Area 1.0355E+10 bytes

Fixed Size                  2290240 bytes

Variable Size            1778388416 bytes

Database Buffers         8556380160 bytes

Redo Buffers               18366464 bytes

Database mounted.

Database opened.

SQL> CONN MCA8TAB/xxxxx

ERROR:

ORA-00604: error occurred at recursive SQL level 1

ORA-01653: unable to extend table SYS.AUD$ by 1024 in tablespace SYSTEM

ORA-02002: error while writing to audit trail

ORA-00604: error occurred at recursive SQL level 1

ORA-01653: unable to extend table SYS.AUD$ by 1024 in tablespace SYSTEM