Blog posts are not showing up on the Blog page

Hi,

This is my site Link. When I traverse to my blog page. My blog page’s blog does not show up. Gone through with lot of articles, using incognito mode, tried with activate/deactivate plugins but nothing is helping.

I am having two use cases:

If I do changes in my settings like this: Appearance -> Customize -> General Theme Options -> Homepage settings > A static front page -> and check from there ‘A static front page’ > choose a page to set up as your front-page and select your blog page as your ‘Posts page’ > save. Then my blog page does not load at all.
Sharing screenshot although via link: https://ibb.co/MBZtPvN

If I do not do these settings i.e. the above one then on blog page the listing comes up but there is no preview of articles. Screenshot: https://ibb.co/mTPJZFy

The blog page should look like this: https://ibb.co/Hq2N4tj

Please help me.

Thank you.

The page I need help with: [log in to see the link]