problem with php cwp

[fatto7]

I am running the php CWP for the first time, and I have the following very basic problem. when I want to test the php cwp using the filemaker sever testing page an error message comes up saying "

The PHP connection to the FMServer_Sample database failed.

Notice: Undefined index: message.error.fm.7 in /Library/FileMaker Server/Web Publishing/web-server-support/test/fmi-test/phptest.php on line 36

The Web Publishing Engine is refusing connections. Make sure the web server is started and try again. (Error 7; Running out of memory)

" please somebody help me in solving this problem

thanks in advance

Fathy