[Plugin: Visual Composer] with Jupiter Theme by Artbees

I recently purchased and installed Visual Composer for my WP Jupiter Theme (by Artbees) website, however, when i go to activate the plugin an error pops up:

Fatal error: Cannot redeclare class Vc_Manager in /home/sbsi/public_html/wp-content/plugins/js_composer_theme/js_composer.php on line 36

The FAQ for the Visual Composer Pagebuilder states to contact the WP theme author in order to remove the in-built Visual Composer version from the WP site and install default Visual Composer.

Any assistance will be greatly appreciated! In desperate need to finish my website! =)