TOPIC:

So, we are setting up xerte on an ubuntu server with Apache, php and MariaDB as the stack. We have setup the website and we could login with a test login to xerte but when attempting to create a new project, the editor window would open but would not load any content, and would just load a spinning wheel. We could see that projects had been created in the 'USER_FILES' directory, but no content loaded on the page, any ideas would be greatly appreciated ?

So is this a new installation?
Have you checked the server requirements xot.xerte.org.uk/play.php?template_id=81#systemrequirements including the required extensions?
Was everything confirmed as ok during setup?
What have you setup as the authentication method - is the account you're testing with a DB account? If so does the sup folder in USER_FILES contain the correct username as part of the folder name?
Anything relevant in the apache error logs? Set development=true in config.php and then check the apache error logs as well as the xerte debug.log.
Anything relevant in the browser console when you get the empty window?
Sorry all questions and no answers but those are the things to check and test.
HTH
Ron