Cannot create new domains

[Magumo]

On attempting to create a new domain I am getting the following error in the Event viewer.

Event Type: Error
Event Source: websrvmng.exe
Event Category: None
Event ID: 1
Date: 2010/05/28
Time: 02:09:48 AM
User: N/A
Computer: CP4
Description:
Access is denied. (Error code 5) at create mutex {84D6D206-3ADB-41de-BD3F-AD3606673FCF}
at (ExclusiveTask::Initialize line 259)
at execute console command --get-vhost-performance(vconsoleapp::start line 129)
at execute "C:\Program Files\SWsoft\Plesk\admin\bin\websrvmng" --get-vhost-performance "--vhost-name=agtest.com"(vconsoleapp::run line 140)
Execute file name: C:\Program Files\SWsoft\Plesk\admin\bin\websrvmng.exe

Any ideas, what the problem might be?

 

[Magumo]

Rebooted the server and errors were resolved. Yep, it was that simple