Visual composer a very handy tool/plugin to design a WordPress page, but recently WordPress new update has broken many sites which are using “Visual Composer” as a default page builder.
Its all are happening due to new WordPress Jquery/js library compatibility.
I also faced the same problem on my website that time I did some experiments and got a fantastic solution for this problem so if you are facing the same issues about VC broken just contact me I will fix this issue for you.