Visual Composer doesn't work anymore...

When I try to modify my pages contents, i can’t reach the front-office editor or classic mode anymore. Visualcomposer doesn’t work and an animated icon appears but the interface never opens.
How could I send you my personal infos for watching this?
Thanks a lot for your help,

I am having the same issue. I hope someone answers

That sounds like a version or hosting PHP issue.

You need to ask the author of the theme which you bought which had VC included.