Please help, page jumbled and edit isn't working

Im having major problems with a page on our site. It is a schedule page with coded blocks to make up the calendar and live links to course pages. I recently made some edits to the code as I have a million times before with no issue.

This time however it has completely F'd the layout of the whole schedule. When I go to edit the page however it looks exactly like it should, without all of the jumble. I have taken out the blocks and replaced them with the original non faulty code but nothing I do makes any difference to the live page. I have cleared my browser and tried all of the recommended fixes. PLEASE HELP. This is a vital part of our website and. drives a huge portion of our sales.

Please have a look here https://www.ccp.sa.edu.au/schedule and let me know if you have any recommendations

Thank-you!!!

Hi,

You mean you can't edit the page, the change doesn't save or?

Howdy, I can technically edit the page but once I have saved the changes it doesn't save them in the same way as I had edited it