Wordpress Page builder

Hi there,
A few days ago, I upgraded my membership to get the membership plugin.
I was not getting the pro version features on membership plugin so the support person helped me with the WPMU Dashboard setup and removal plus reinstall of membership plugin.
Everything related to WPMU items is working fine but my front end page builder Visual composer does not load anymore after that.
Can someone please review my site (I have granted the access) and let me know if I should contact visual composer, or wpmu or hire someone to fix this. Your suggestion will help me decide. Kindly respond asap.

Cheers,
Ess