Oracle Step during Quality refresh

Dear Team ,

I am doing  refresh my Quality Server (QAS) from Production Server (PRD).

Then create  sucessfull Control File ,then I have run below oracle command.

Oracle is starting sucessfully

SQL> startup

ORA-32004: obsolete or deprecated parameter(s) specified for RDBMS instance

ORACLE instance started.

Total System Global Area 4676788224 bytes

Fixed Size                  2190320 bytes

Variable Size            2348811280 bytes

Database Buffers         2315255808 bytes

Redo Buffers               10530816 bytes

Database mounted.

Database opened.

SQL> alter user SAPSR3 profile default;

User altered.

SQL> alter user SAPSR3 identified by SAP;

User altered.

SQL> delete SAPSR3.usr02 where mandt like 000 and bname like 'SAP*';

0 rows deleted.

SQL> create user OPS$qasadm identified externally default tablespace PSAPSR3USR temporary tablespace PSAPTEMP;

create user OPS$qasadm identified externally default tablespace PSAPSR3USR temporary tablespace PSAPTEMP

            *

ERROR at line 1:

ORA-01920: user name 'OPS$QASADM' conflicts with another user or role name

SQL> create user OPS$oraqas identified externally default tablespace PSAPSR3USR temporary tablespace PSAPTEMP;

create user OPS$oraqas identified externally default tablespace PSAPSR3USR temporary tablespace PSAPTEMP

            *

ERROR at line 1:

ORA-01920: user name 'OPS$ORAQAS' conflicts with another user or role name

SQL> grant dba,connect,resource to OPS$qasadm;

Grant succeeded.

SQL> grant dba,connect,resource to OPS$oraqas;

Grant succeeded.

SQL>

Please suggest for these step ,How to solve these oracle problem.

Regards