TinyMCE and WordPress 3.9 update

Hi all,

I’ve found a lot of posts on TinyMCE’s transition into WP Edit and limited support of the previous version, but I still can’t find a fix for my problem. I bought a theme a few months ago but the developers disappeared before I had a chance to ask them how to fix my text editor. It’s appearing blank; the kitchen sink is gone and my text won’t appear in the editor despite the fact I know it’s there from the live website (http://suffixjournal.com).

I ran a debug on it and it’s highlighted the following problems in the file tinymce.min.js:
TypeError: ‘undefined’ is not a function (evaluating ‘e.addClass(n.controlClass)’)
TypeError: ‘undefined’ is not an object (evaluating ‘this.getDoc().body’)

Could anyone tell me what this means, please? Is there anyway I can fix this?

Many thanks all,
R