Problem using the CreateVersion on ASP.net

I'm migrating some code which works fine on Windows Forms, but now in ASP.net I'm getting an error, I'm creating a version from one that already exist, the error says "The application is not licensed to perform this operation"; before execute the CreateVersion method I do the initialization of license and didn't get any error. Does someone know why the CreateVersion works on Windows Forms and not in ASP.net?

Thanks in advance

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