Hello,
Sorry for the inconvenience but it is not correct, you can’t use two Page Builders at the same time on the Site. It can cause conflict like you just realised. So, make sure that you use only one Page Builder like you mentioned Elementor, so go along with that.
Secondly, there is a CORS Response Header Error on your Site which is related to Server End. See this image fo reference: https://postimg.cc/5j4G7F7q
So, you’ll need to contact your Hosting Provider in this regard. They will resolve this issue on your Site.
Best Regards.