I don’t understand, the preview is shut down with this website. But I didn’t make a change since the last upload.
The software is ok with a new website…
what is the problem ?
This has happened to me in RW7 as well. The only solution I had is to save the project, then reload it and voila, I was able to see the project in Preview. This seemed to correct it for me. Not a great solution to be sure, but it did work. Hopefully, this gets fixed soon.
Thanks but it’s the same problem 
I think the software has a bug with a heavy website or some code in all pages …