OK. Sorry about this. But it does now work for me. I just played about with w3 cache and, well, disabled everything (Page cache, database cache, the lot) and it managed to work. So I’m seeing plugin is working on that end.
But the problem I’m having is : How to get it back to my original site ? Because when I disable it (the coming soon plugin) it goes back to “Website under construction) Sorry to be a pain.