Duplicate entry error with New Blog Templates plugin

I’m receiving an error when I try to create a new site using the New Blog Template plugin. It’s related to the “Theme My Login” plugin though, so maybe not something you can help me with.

Here’s the error:

Insertion Error: Duplicate entry 'theme_my_login' for key 2 - The template was not applied. (New Blog Templates - While inserting templated settings)