Hi, I’ve cloned my live site to a dev site to try and upgrade to Pro. If I try and upgrade to Pro on the dev site with Cornerstone actiavted the site bombs and I just get a white screen, if I update with Cornerstone deactivated Pro will work but my content is not editable when I try and edit the page. The site looks as expected when I view it using a browser, but as soon as I try and edit the page I get:

If I try and activate Cornerstone I get:

Any advice? I’ve tried reading through the other topics regarding Cornerstone and upgrading to Pro and I haven’t seen any of these specific errors. I cloned my site using Updraft Plus if that is any help and my staging area is on a Mac using AMPPS. Thanks in advance.
