[SOLVED] Error after clean Install

[greenie]

Hello there. After a clean install of ispcp omega 1.0.5 on a virtual Centos machine I tried to open the defalut page but I saw a blank page. http://guest-00715.limehost.ro/
After a consult of /var/log/httpd/users/default-error.log i saw the next error.
I am not a great linux specialist. perhaps someone of you have any ideea about that. i read many posts on that forum but nothing helped.

[Sun May 23 09:25:10 2010] [error] [client 188.25.170.93] PHP Warning: require_once(/var/www/ispcp/gui/include/ispcp-db-keys.php) [<a href='function.require-once'>function.require-once</a>]: failed to open stream: Permission denied in /var/www/ispcp/gui/include/ispcp-lib.php on line 67
[Sun May 23 09:25:10 2010] [error] [client 188.25.170.93] PHP Fatal error: require_once() [<a href='function.require'>function.require</a>]: Failed opening required '/var/www/ispcp/gui/include/ispcp-db-keys.php' (include_path='.:/usr/share/pear:/usr/share/php') in /var/www/ispcp/gui/include/ispcp-lib.php on line 67

I tried to apply solutions from
http://isp-control.net/forum/thread-1007...l#pid78186
but I receive next errors

[Sun May 23 09:24:30 2010] [error] [client 188.25.170.93] PHP Warning: PDO::prepare() [<a href='function.PDO-prepare'>function.PDO-prepare</a>]: SQLSTATE[00000]: No error: PDO constructor was not called in /var/www/ispcp/gui/include/class.Database.php on line 115
[Sun May 23 09:24:30 2010] [error] [client 188.25.170.93] PHP Warning: PDO::query() [<a href='function.PDO-query'>function.PDO-query</a>]: SQLSTATE[00000]: No error: PDO constructor was not called in /var/www/ispcp/gui/include/class.Database.php on line 100
[Sun May 23 09:24:30 2010] [error] [client 188.25.170.93] PHP Warning: PDO::setAttribute() [<a href='function.PDO-setAttribute'>function.PDO-setAttribute</a>]: SQLSTATE[00000]: No error: PDO constructor was not called in /var/www/ispcp/gui/include/class.Database.php on line 112
[Sun May 23 09:24:30 2010] [error] [client 188.25.170.93] PHP Warning: PDO::prepare() [<a href='function.PDO-prepare'>function.PDO-prepare</a>]: SQLSTATE[00000]: No error: PDO constructor was not called in /var/www/ispcp/gui/include/class.Database.php on line 115
[Sun May 23 09:24:30 2010] [error] [client 188.25.170.93] PHP Warning: PDO::query() [<a href='function.PDO-query'>function.PDO-query</a>]: SQLSTATE[00000]: No error: PDO constructor was not called in /var/www/ispcp/gui/include/class.Database.php on line 100
[Sun May 23 09:24:31 2010] [notice] child pid 4917 exit signal Segmentation fault (11)
Can anybody give me a clue?
Thanks.