If you see this error in the log file, when the site starts up. This is a legacy controller that has been removed from the DFS 9.1 release. It has no impact on the module everything will work as expected.

log

7728 21:08:31 ERROR [Sitecore Services]: Failed to load DFS.Client.Services.Controllers.MenuTreeController, DFS.Client.Services

If you want to remove this error, open the config file \App_Config\Include\damforsitecore\DFS.Client.Services.config and remove the line <allowedController desc="MenuTreeController">DFS.Client.Services.Controllers.MenuTreeController, DFS.Client.Services</allowedController>. Save the file and reload the site. You should no longer see the error.

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