Everything seems OK in the install process expect that I miss plugins apparently : I only have two harington's and contact

Regarding your printscreen in your manual, it seems I miss a lot. Maybe that's why I can not edit any page, I face a new strange interface with code... 

Is there a way to call them again ?

Thank you for your quick reply. After a weekend on it and your confirmation about my plugin list, everything seems effectively to work perfectly ( even placeholers images' links with the demo template content finish to work ).

I was more surprised by the new assisted way to install themes as well as the new Gutenberg's interface look on pages / portfolio on editing mode. With the black and white minimal design, it is, at first glance, less intuitive and friendly user as the previous visual composer or page editor.

But it seems to work allowing every content to be edited. It will take some hours to get used to this new interface but I think it is the right move. Soon or later I would have to face it on a theme or an other and it will make one or two plugins less for easier updates. 

Have a great start of your week and thanks for your great templates, I am big fan since years ^-^