how can fix application pool error?

[ThanhN]

"The Windows Process Activation Service failed to generate an application pool config file for application pool 'plesk(default)(2.0)(pool)'. The error type is '7'. To resolve this issue, please ensure that the applicationhost.config file is correct and recommit the last configuration changes made. The data field contains the error number."

Winserver 2008 r2 sp1
Plesk 10.4.4

How can i fix this ?
Thank you

 

[IgorG]

Maybe it will help - http://forums.iis.net/p/1149073/1888560.aspx