Plesk shows HTTP Error 503. The service is unavailable: MivaVMIIS7.dll failed to load. The data is the error

Created:

2016-11-16 13:11:09 UTC

Modified:

2017-08-08 13:43:37 UTC

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Plesk shows HTTP Error 503. The service is unavailable: MivaVMIIS7.dll failed to load. The data is the error

Applicable to:

  • Plesk 12.5 for Windows

Symptoms

Unable to access Plesk with error:

HTTP Error 503. The service is unavailable

In Event Viewer the following error appears:

The Module DLL C:\\inetpub\\vhosts\\example.com\\httpdocs\\mivavm-v5.23\\bin\\MivaVMIIS7.dll failed to load.  The data is the error.

Cause

Module is corrupted or incompatible with server OS.

Resolution

Remove module mentioned in error message from IIS > Modules > Configure Native Modules .

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