Page Builder seems don’t work when website is loaded online

Hi,
i’m Martina and i have always used this beautiful plugin at all websites that I made.
But in this case, when i work in local, the plugin works, while when the website is loaded online the plugin stops working despite being active. Disappear every builder layout that I built.
I’m working with last version of wordpress and Page builder plugin.
Could you help me please?
Thanks and sorry for my English.
Martina