Hi, Thank you for your help.
I have spoken to my web host to see if they can spot any problems and they have increased the execution time in PHP ini. to try and eliminate the timeout error.
I have also increased the memory limit to 512M.
However none of this has helped resolve the problem.
I have disabled all plugins and returned to a default Wordpress Theme where I am able to edit the Test page that you created, I was able to add an image and some random text and it saved without any problems.
I changed the Theme back to Pro and tried to edit a page and I still get freezes, i’m unable to add text or access the media library. I have tried this through Safari and Chrome and also using a 4G connection to eliminate any issues with my network.
Please can you advise what to do next.