Plesk hosted website shows Error 500: Module “PleskUrlProtectionModule” could not be found

Symptoms

One or multiple websites are not available with one of the following errors:

HTTP Error 500.0 - Internal Server Error Module "PleskUrlProtectionModule" could not be found

HTTP Error 500.0 - Internal Server Error Module "RewriteModule" could not be found

Cause

One of the necessary modules is not declared in the IIS Server configuration.

Resolution

1. Connect to the server via RDP

2. Make a back up of the C:WindowsSystem32inetsrvconfigapplicationHost.config file

3. Open the original file for editing

4. Add the following line to <globalModules>:

   • For PleskUrlProtectionModule:

     <add name="PleskUrlProtectionModule" image="%windir%System32inetsrvpleskurlprotection.dll" />

   • For RewriteModule:

     <add name="RewriteModule" image="%SystemRoot%system32inetsrvrewrite.dll" />

5. Apply the new configuration by restarting IIS service:

   C:> iisreset

   Warning: It will cause temporary inaccessibility of all other websites hosted on the server.