Symptoms
A task to uninstall FPSE support for a virtual web server failed with an error:
Task name Uninstall FPSE support for virtual web server 5251 on host
Last execution output Specified AD entity not exist (entityId = 0).
Cause
The issue is caused by bug POA-85261.
Please contact your Account Manager to track the status of the issue.
Resolution
Cancel the task and remove the FrontPage extension from the site on the Windows Shared host. See the following article for more information: https://kb.cloudblue.com/117179