Umbilic point - File not found

Hi guys

I'm keen on trying the Umbilic Point component but when I connect an input I get a runtime error:

1. Solution exception:File or assembly 'NLOptDotNet, Version=1.0.4703.23762, Culture=neutral, PublicKeyToken=null' or one of its dependencies could not load. The file was not found.

Any tips for solving this?

I have reinstalled the files and the NLOptDotNet.dll file is in the Components Folder.

Thanks