Hi there,
First of all, thank you for your patience as this took longer than expected to resolve.
I managed to access your website and go to Pro Editor and found out the spinning logo effect is because of the Internal Server Error 500:
There are many possibilities that can cause this issue which we should rule out one by one. But at least we now know this is something related to your hosting service provider and we will do our best to give you the correct possibilities which you can contact your hosting provider:
- Mod_Security settings in the hosting:
This can be fixed by the hosting service provider, kindly contact them and ask to remove the Pro Builder Endpoint URLS such as http://legalmarketing.io/x/ from Mod_Security settings. While contacting the, kindly give them this guide:
- Files and Folders permission:
Make sure that all your Wordpress installation files and folders have read and write access. You can consult with your hosting service provider regarding this and give them this guide:
https://codex.wordpress.org/Changing_File_Permissions
- Hosting internal Cache and Minification Services:
Some hosting providers have internal Caching system and assets minifying services. Pro minifies all it’s assets already and minifying the assets again will make conflicts. If the provider has such a service ask them to turn off for you.
I hope that I could give you a complete guide on possible causes that 500 error can be originated from, I also suggest that you contact your hosting service provider and ask them to check their log to see what was the problem.
Thank you again for your patience and understanding.