Highend Theme – Visual Composer (v4.3.3) not working…

I just recently purchased (last week) the Highend Theme. Visual Composer originally worked, but I just rec’d a notice that there is a new version of Visual Composer (4.3.4)? The Highend theme I was sold had v.4.3.3? I am unfortunately unable to click to the new link of 4.3.4 to update (link is broken in wordpress) and my plugin will not work and simply crashes my site every time I go into the Highend Options screen? I was under the impression that all plugins associated with this theme would be updated automatically and for free? What should I do?