Can you give me (super) admin and (s)ftp access so I can take a look?
And tell me what template is the issue.
You can use the 'Confidential information' button in the forum editor to hide sensitive information.

You have jQuery issues on your site.
Your template is trying to load multiple versions of jQuery.
These errors are causing other javascripts to fail.

Also for some reason your editor is not loading any of the editor buttons. This also causes necessary scripts to not get loaded.

Not sure what you did to not have the editor buttons loaded.
But happy you found a solution.

Sorry, can't provide you with a solution for a non-standard custom-hacky situation.
If you hack stuff, you'll need to fix issues your hack creates.

Sorry, but like I said, you have issues with your editor. It isn't showing any of the editor buttons. Neither in the frontend or the admin side.
This is something that has nothing to do with Content Templater and something you'll need to fix on your side.

Can you give me access to that fresh installation?