Hello,
After checking your site, we see that there is an error on your site due to the site’s need for a large amount of memory. Therefore, after checking what might need so much memory, we noticed that you have an HTML-block recursion on your site: https://monosnap.com/file/pUmo3PAYkWu296H4RVWeMiKEj22JLw , because in this HTML block, again, this is the menu, because of this, your site cannot withstand such a load.
To solve this problem, replace the menu in this HTML block or delete it in the dropdown.
Kind Regards