QuestionApplication pools are crashing on Plesk for Windows Server: The Module DLL C:\path\to\module_name.dll failed to load. The data is the error.
Symptoms
- Plesk and websites are unavailable with the following error message in a web-browser:
503 Service unavailable.
- Application pools are stopped in IIS Manager > Application pools.
- After restarting an application pool of the website and accessing this website, the application pool crashes.
- The following error message is logged in Windows Event Viewer > Windows Logs > Application:
The Module DLL C:\path\to\module_name.dll failed to load. The data is the error.
Cause
The module defined in IIS configuration is improperly configured.
Resolution
1.Connect to the Plesk server via RDP.
2.Start a Command Prompt as an Administrator.
3.Create a backup of IIS configuration:
C:\> %windir%\system32\inetsrv\appcmd.exe add backup BeforeEditBackup
Note: The backup will be created in C:\Windows\System32\inetsrv\backup.
4.Start Internet Information Services (IIS) Manager at Windows Start > All Programs > Administrative Tools.
5.In IIS Manager, click on SERVERNAME > Modules and remove the faulty module reported in the error message.
Note: In case the module is not visible on the modules page, move to step 6.
6.Open the file %windir%\system32\inetsrv\config\ApplicationHost.config in a text editor and remove the lines related to the faulty module (if exist).
For example:
<add name="CSPms" image="C:\Inetpub\CSPGateway\CSPms.dll" />
7.Save the changes.
8.Restart IIS:
C:\> iisreset