Find

ORA-01632: max # extents (505) reached in index APPLSYS.SYS_IOT_TOP_217479

ORA-01632: max # extents (505) reached in index APPLSYS.SYS_IOT_TOP_217479

Find primary storage for SYS_IOT_TOP_217479 by command.
 
SQL> select owner, table_name, table_type from dba_indexes where index_name = 'SYS_IOT_TOP_217479';

OWNER                          TABLE_NAME                     TABLE_TYPE
------------------------------ ------------------------------ -----------
APPLSYS                        AQ$_WF_JAVA_DEFERRED_T         TABLE


After you get primany storage.
Extend that storage with this command:

alter table APPLSYS.AQ$_WF_JAVA_DEFERRED_T storage(maxextents unlimited);

** If TABLE_TYPE is INDEX. Change "alter table" to "alter index"