HTTP Error 500.19 - Internal Server Error

Hello,

After I configured the PHP in IIS 8, all the websites is showing this error

Detailed Error Information:
Module       IIS Web Core
Notification       BeginRequest
Handler       Not yet determined
Error Code       0x800700b7
Config Error       Cannot add duplicate collection entry of type 'add' with unique key attribute 'name' set to 'PHP'
Config File       \\?\C:\webspace\jobs.humanics.com.sg\www\web.config
Requested URL       http://www.jobs.humanics.com.sg:80/online/
Physical Path       C:\webspace\jobs.humanics.com.sg\www\HMNS\
Logon Method       Not yet determined
Logon User       Not yet determined

Config Source:
   22:             <remove name="PHPFastCGI" />
   23:             <add name="PHP" path="*.php" verb="*" modules="CgiModule" scriptProcessor="c:\php\php-cgi.exe" resourceType="Unspecified" />
   24:         </handlers>

Does this mean that I have to delete this line?

23:             <add name="PHP" path="*.php" verb="*" modules="CgiModule" scriptProcessor="c:\php\php-cgi.exe"

Thanks!