Hello,
Before your actions, we checked in a few browsers (Chrome, Firefox) and all was fine. The problem was caused by .js error which comes from cached version of scripts, disabling the cache plugin cleared cache so once the plugin was activated new version of the cache is fine.
Why it doesn’t work on your computer? It is strange. Please check from other devices.
Here you can download the previous version of WPBakery (6.9.1)- https://dropmefiles.com.ua/en/EQwLk
Regards