Search result snippets to exclude menu items and other unimportant information

Dear all,

I have 8 menu items showing up in the search snippets of my blog posts. Is there a way to exclude these from showing up? I only want a snippet from the body of the post to show up, not the menu item, name of the author or post date.

Here is my site Read-Only:

Please note that the following box had been ticked all this time:

Screenshot 2021-12-27 at 13.27.26

Anyone find the answer? I’m struggling with this now!