Ondemand Migration for Email

Having trouble setting up migration from Notes to O365

Hi,

 

I am atempting to migrate some Notes mailboxes to O365.

I have (tried) to follw the instructions in the tech documents.

When I try to confirm that the setup of the webserver is correct, i get an error.

 

Module IIS Web Core
Notification BeginRequest
Handler Not yet determined
Error Code 0x80070021
Config Error This configuration section cannot be used at this path. This happens when the section is locked at a parent level. Locking is either by default (overrideModeDefault="Deny"), or set explicitly by a location tag with overrideMode="Deny" or the legacy allowOverride="false".
Config File \\?\C:\Program Files (x86)\Quest Software\Domino Web Service\web.config

 

Config Source:
40: <modules runAllManagedModulesForAllRequests="true"/>
41: <handlers>
42: <remove name="ExtensionlessUrlHandler-ISAPI-4.0_32bit"/>

 

Can anyone tell me what I did wrong?