I’ve looked at the previous threads on this matter. I’ve have the lastest version of the Fit Pro Theme. I am a bit of a novice when it comes to this, but I’m trying to figure out why. I don’t believe I’ve downloaded any new plugins.
Currently you are using old version theme , Pls update theme to latest version(2.2).
You can download latest version theme from your themeforest account > downloads tab .
If there is any difficulty to upload complete theme file then you can download installable theme files only and just update main.js file which is in the js folder
And you can find latest VC plugin files (js_composer and templatera)in frameworks/plugins folder .