Article ID: 127083, created on Oct 4, 2015, last review on Oct 4, 2015

  • Applies to:
  • Plesk 12.0 for Windows


Websites are not accessible after microupdate #67 installation:

500 internal server error


This is Plesk internal issue with id #PPPM-3375, which is planned to be fixed in future Plesk updates.


Correct disk permissions using Plesk Reconfigurator via Start > Programs > SWsoft > Plesk > Plesk Reconfigurator > Correct disk permissions - Set.

Search Words

500 internal server error

The HTTP Filter DLL C:\Program Files (x86)\Parallels\Plesk\isapi\urlprotect.dll failed to load. The data is the error.

ed7be2b984f9c27de1d2dc349dc19c6d 56797cefb1efc9130f7c48a7d1db0f0c a914db3fdc7a53ddcfd1b2db8f5a1b9c 85a92ca67f2200d36506862eaa6ed6b8 a766cea0c28e23e978fa78ef81918ab8

Email subscription for changes to this article
Save as PDF