Error: Preview could not be loaded

Hello,
I’ve been trying to edit pages on my website but I’m unable to. I have tried everything from the steps mentioned in the debugging help page. It probably has something to do with permalinks, when I use custom structure; it doesn’t let me edit the page. I checked with my hosting provider, and they said everything is working perfectly fine so it’s the problem with Elementor.

Can you please help me with why this is happening.

Thank you.