oracle: error when trying to recover text for error ORA-12154

I am connecting to the Oracle server using PLSQL, this is my tnsnames.ora configuration (C: Oracle ora90 network ADMIN):

        MY_ERP =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP) (HOST = 192.168.1.11) (PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
)
)

and this is my env variable of ORACLE_HOME:

C:  Oracle  ora90

When I am connecting to the server, it throws this error:

error when trying to recover text for error ORA-12154

Am I missing something? The operating system: Windows 10. PLSQL: 7.1.4.1390. Oracle 9.