When trying to edit the content of the page, it stays on “loading mode”. I’ve already purchased and uploaded the most updated version of Motopress.
I thought it’s the WordPress or plugin issues. I’ve updated to the WP to the 4.7 and disabled all the plugin (except Motopress), it’s still not loading (stay at the “loading” mode)
It is rather troublesome to define the issue without access to your WordPress, theme, plugins. Probably there is conflict with other plugin or theme. I would recommend you to deactivate all the plugins except MotoPress Content Editor and check if it works. Then activate plugins one by one testing if Page Builder is loading properly. Thus you will find a plugin that causes an issue.