@modemlooper & Henry, thanks for your help so far.
Ok . . . . . I have just done a fresh install of WP and BP in a sub domain and not in a separate folder as it was before. So the address is now ‘cyc.manorway.org.uk’ All the HTTPS’s have gone (there were a lot of them looking at the browser source code!).
The next problem: I can now get into the ‘Groups’ page but get ‘Page not found’ when clicking on ‘Add new’ (group).
Any thoughts please. I have done a quick search but cannot find any useful answer.
BP works ok on another 2 temporary sites on the same server
It also works ok on my home local host server.
It is just this 1 site that gives the problem, maybe I should try a complete reinstall including the database!