Hello,
Thank you for your patience regarding this. Before restoring your site on your domain I decided to test it on our clone, which has significantly more resources to deal with any issues which may arise. The reason for your failed attempts at restoration appear to be the theme. I have attached the error log and an edited version to show the fatal errors. When the theme is active it crashes the site due to memory exhaustion.
I performed some research on this and there is a similar issue here Cornerstone throwing errors and is unusable
Changing the PHP version to 8 as mentioned in the topic above does not solve the issue…