Visual Composer Issue

?Hello! I have the bridge theme on my site superartisthq.com. After I updated to the latest version I started getting a 500 error sometimes, but mostly just a blank white screen. The Fatal error: Out of memory error is assosiated with it. I've narrowed down the problem to the Visual Composer plugin with the theme. Everything works fine when the plugin is turned off, but goes back to having errors when it is turned back on. I've been using Bridge for a while now with Visual Composer and haven't had a problem until now. So far, it doesn't appear to be a conflict with any other plugins. I've checked my PHP version which is 5.6 and all my permissions are okay. Any idea what might cause this? Thanks for your help!