Pro: A conflict on the front end of your site has prevented - Nothing Works

None of the solutions work, which renders the Pro version useless.
What is the fix for this, I have the latest WP and I am not even migrating a site.

Hi there,

Would you please kindly get back to us with the URL/User/Pass of your website using the Secure Note functionality of the post to follow up the case?

You may already read this article but I mention it here as we gathered common causes of the issue you mentioned:

Hope it helps.