Easy Table of Contents and Enfold

Hello, I told the creator of “Easy Table of Contents” if he could make his plugin compatible with Enfold, Because this plugin is one of the best that exists to make a good table of contents, and improve the SEO of the content of a website.
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conversation with the author:
Could it be compatible with the enfold theme? please :)
https://wordpress.org/support/topic/could-it-be-compatible-with-the-enfold-theme-please/
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But he tells me that he does not have access to test the template because it is premium.
Could you collaborate with him to make this plugin compatible please?

Thanks and best regards.