Forbidden You don't have permission to access in apex

Hi,
recently I have installed the apex after installation am facing below error .

Forbidden You don't have permission to access

Log file detail :-
[client 10.1.0.207] [ecid: 1301317763:10.2.0.189:7364:0:4,0] mod_plsql: /pls/ourprod/apex HTTP-403 ORA-1017 ORA-01017: invalid username/password; logon denied\n

my dads.conf detail :-
<Location /pls/ourprod>
    Order deny,allow
    PlsqlDocumentPath docs
    AllowOverride None
    PlsqlDocumentProcedure wwv_flow_file_mgr.process_download
    PlsqlDatabaseConnectString 10.2.0.183:1523:OURPROD SIDFormat
    PlsqlNLSLanguage AMERICAN_AMERICA.AL32UTF8
    PlsqlAuthenticationMode Basic
    SetHandler pls_handler
    PlsqlDocumentTablename wwv_flow_file_objects$
    PlsqlDatabaseUsername APEX_PUBLIC_USER
    PlsqlDefaultPage apex
    PlsqlDatabasePassword welcome
    PlsqlRequestValidationFunction wwv_flow_epg_include_modules.authorize
    Allow from all
</Location>
Solution:-
SQL >ALTER USER APEX_PUBLIC_USER  IDENTIFIED BY welcome;

Then my problem is resolved ....